Last updated: 17 August 2026

Slay the Spire 2 Silent Build Guide Poison, Shivs & Discard

The Silent returns in Slay the Spire 2 with her sharp, scheming identity intact: 70 base HP, the Ring of the Snake starter relic (draw 2 extra cards on turn 1 of every combat), and a card pool that punishes enemies through accumulated venom, a hail of 0-cost Shivs, or a discard engine that generates resources faster than any other character. She has the lowest HP of the three returning characters, zero post-combat healing, and absolutely rewards knowing what you want from each card pick. This guide covers all three archetypes, the key cards that define each, and the relics worth hunting.

01Silent Unique Mechanics

Before committing to an archetype, understand what separates the Silent from the other four characters:

• Ring of the Snake (Starter Relic) — draw 2 additional cards at the start of turn 1 of each combat, giving you a 7-card opening hand. This makes the Silent the best character at finding her setup pieces on turn 1, which is critical because all three of her archetypes want specific cards in hand early.
• Poison — a stacking debuff. When you apply Poison to an enemy, it loses that much HP at the start of its own turn, then the stack count decreases by 1. It persists across turns and cannot be Blocked — every stack of Poison is guaranteed damage. The Silent's poison cards typically deal no or low direct damage; the payoff is the accumulating DoT.
• Shivs — 0-cost Attack cards generated mid-combat by Silent-specific cards. They are not in your starting deck; they appear in your hand from card effects. Shivs deal low base damage individually (4 per hit) and Exhaust after use, but played in large numbers they add up fast — and Accuracy (a Power) adds a flat +4 to each Shiv for the rest of the combat.
• Sly (Discard triggers) — in STS2 the Silent has a keyword called Sly. A card with Sly plays automatically for free when discarded from your hand during your turn. Tactician (gain 1 Energy) and Reflex (draw 2 cards) are the primary Sly payoffs — their nominal cost from hand is 3 Energy, making direct play inadvisable. You want them triggering via discard outlets such as Acrobatics or Calculated Gamble.

The Silent does not mix archetypes as comfortably as the Necrobinder does. A Poison build wants almost exclusively poison sources and Block, a Shiv build lives and dies on Accuracy, and a Discard build needs its triggers set up precisely. Drift off-theme and your deck becomes unfocused. That said, every build benefits from at least one source of Block (Blur, Escape Plan, Footwork) — the Silent's 70 HP punishes taking avoidable hits.

02Archetype 1: Poison Build

The Poison build front-loads venom onto enemies in the first couple of turns, then stalls with Block while the DoT closes out the fight. It shines in long single-target fights — bosses and Elites — because Poison's damage per turn is not mitigated by enemy Block. The cornerstone is the Catalyst card.

Core Poison cards:

• Deadly Poison (Skill, 1 Energy) — apply 5 Poison. The bread-and-butter applicator. Solid stack count for 1 Energy, no damage attached. An upgraded Deadly Poison applies 7 stacks.
• Catalyst (Skill, 1 Energy, Exhaust) — double the Poison stacks on the target. If upgraded, triple them instead. Playing Catalyst on 7 stacks turns that into 14 guaranteed damage per turn from that point forward. One of the strongest single cards in the entire game when a Poison build is running.
• Noxious Fumes (Power, 1 Energy) — at the start of each of your turns, apply 2 Poison to all enemies. Once active it handles passive poison accumulation without spending cards, freeing your hand for Block and Catalyst.
• Envenom (Power, 2 Energy, Rare) — whenever you deal Unblocked attack damage to an enemy, apply 1 Poison. Converts every attack you play into a poison applicator — pairs well with Shiv cards since each Shiv individually triggers Envenom.
• A Thousand Cuts (Power, 2 Energy) — whenever you play a card, deal 1 damage to all enemies. Combined with deep deck cycling or a Shiv build, this adds meaningful chip damage — but in a dedicated Poison build, it's largely a bonus, not a core piece.

Patch v0.110.0 (July 31, 2026) reworked the Silent's wider Poison toolkit — worth knowing even though the cornerstone cards above are untouched. Mirage (Skill) gains Block equal to the combined Poison stacks on all enemies. In v0.110.0 it briefly lost its Exhaust, but patch v0.111.0 (August 13, 2026) reverted that change: Mirage Exhausts again after use, and upgrading it now removes the Exhaust instead of lowering its cost. Treat it as a single big Block swing timed for your highest Poison count, not a repeatable source. Haze (Skill) dropped from 3 Energy to 2, lost its Sly keyword (which let it play for free when discarded), and now also applies Weak alongside its existing all-enemies Poison, making it a useful AoE poison-plus-Weak opener in mob rooms. Outbreak was reclassified from a 1-Energy Uncommon Power into a 3-Energy Rare Skill that applies a large burst of Poison to every enemy immediately. None of these three replace Deadly Poison, Catalyst, or Noxious Fumes as the build's core.

How to pilot the Poison build in combat:

1. Turn 1: Use Ring of the Snake to find your poison applicators. Apply as much Poison as possible — ideally Deadly Poison plus Noxious Fumes.
2. Turn 2: Play Catalyst to double (or triple) the Poison stacks. Then Block for the rest of the turn.
3. Turns 3+: Stall with Block (Blur, Footwork, Clash doesn't apply here — use Dodge and Roll, Escape Plan) while the Poison ticks down the enemy's HP.
4. Watch the enemy's attack patterns — if they have a low HP total and Poison will kill them before they act again, you can skip Block and spend the Energy on another Catalyst or refilling Poison.

The Poison build's key weakness is early-run Act 1 enemies who die too quickly for poison to accumulate meaningfully. In the early rooms, play Poison normally and close fights with direct damage. Catalyst only shines when you have at least 5–6 stacks active.

03Archetype 2: Shiv Build

The Shiv build generates a flood of 0-cost Attack cards mid-combat and unleashes them in one or two turns for burst damage. Its ceiling is the highest of the three Silent archetypes because Shivs hit for 4 each at base — but with Accuracy stacked, each Shiv quickly reaches 8, 12, or 16 damage, all for 0 Energy.

Core Shiv cards:

• Blade Dance (Skill, 1 Energy, Exhaust) — add 3 Shivs to your hand. The fastest Shiv generator. Upgraded, it adds 4 Shivs. A single Blade Dance into two Accuracies means 3 × (4 + 8) = 36 damage for 1 Energy.
• Cloak and Dagger (Skill, 1 Energy) — gain 6 Block and add 1 Shiv to your hand. Dual-purpose: provides Block while generating Shivs. Upgraded, you get 2 Shivs instead of 1; the Block stays at 6.
• Accuracy (Power, 1 Energy) — Shivs deal 4 more damage. This stacks with additional Accuracy copies — two Accuracies mean each Shiv deals 12 damage; three mean 16 damage. Accuracy upgrades increase the bonus to 6 per copy.

Shiv build execution tips:

• Pick Accuracy first over Blade Dance if you find both early. One Accuracy adds +4 flat damage to every Shiv — doubling their output at base; stacking two is transformative.
• Cloak and Dagger is underrated as a Block source in this build — it generates Block AND a Shiv simultaneously, making it never a wasted pick in any hand.
• Against enemies with high Block (Elites especially), pair the Shiv burst with Footwork (gain 2 Dexterity) to make your regular Block cards more efficient, freeing you to spend more Energy on Shiv generation.

04Archetype 3: Discard Engine

The Discard build is the most unusual of the three: instead of dealing damage directly, it constructs an engine from cards that trigger when discarded — generating Energy (Tactician) or drawing more cards (Reflex) — then fuels that engine with cards that force discards. The payoff is that each discard trigger effectively converts excess cards into resources, letting you play far more of your deck each combat than any other character.

Core Discard cards:

• Tactician (Skill, Sly) — Gain 1 Energy. In STS2, this card carries the Sly keyword: when discarded from your hand during your turn, it plays automatically for free. Its nominal cost from hand is 3 Energy — never play it directly. Trigger it via Acrobatics, Calculated Gamble, or any other discard outlet.
• Reflex (Skill, Sly) — Draw 2 cards. Same Sly mechanic as Tactician: plays for free on discard, costs 3 Energy from hand. Multiple Reflexes in a deck create a self-sustaining draw loop when you have consistent discard outlets.
• Acrobatics (Skill, 1 Energy) — draw 3 cards, then discard 1. The controlled discard enabler: you choose which card leaves your hand, making it easy to trigger a Tactician or Reflex you don't want to play directly.
• Calculated Gamble (Skill, 0 Energy, Exhaust) — discard your entire hand, then draw the same number of cards. If your hand has 4 cards including 2 Tacticians, Calculated Gamble gives you 2 Energy and a fresh 4-card draw for 0 Energy. Explosive when positioned correctly.
• Eviscerate (Attack, 3 Energy) — costs 1 less for each time you've discarded a card this turn. In a build with Tacticians, Reflexes, and Acrobatics, Eviscerate frequently costs 0–1 Energy while dealing 21 damage. Upgraded version deals 27 damage.
• Well-Laid Plans (Power, 2(1) Energy, Rare) — at the end of your turn, you no longer discard your Hand. Patch v0.109.0 (July 17, 2026) reworked this from its old 'Retain up to 1–2 cards' effect into full hand retention, so it now banks your entire hand — Tacticians, Reflexes, or unused discard fodder included — into the next turn for a bigger combo swing. It also works in multiplayer as of this patch, where it was previously singleplayer-only. Patch v0.110.0 (July 31, 2026) then raised its cost from 1(0) to 2(1) Energy, so it's a bigger up-front investment than when it first got the retention rework — still worth it for a hand full of Tacticians and Reflexes, but no longer a near-free play.
• Expertise (Skill, 1 Energy, Uncommon) — draw 2 (3 upgraded) cards, and those cards gain Retain this turn. Patch v0.109.0 reworked Expertise from 'draw cards until you have 6(7) in hand' into this fixed draw-plus-Retain effect, making it a more consistent way to dig for Tactician, Reflex, or Acrobatics without flooding your hand with cards you'll just discard unused.

The Discard build is the hardest to pilot because it requires planning discards deliberately rather than reacting to the board state. The reward is a run that churns through the entire deck in two or three turns and generates more resources than any straightforward build. When it clicks, it becomes nearly unstoppable — especially in Act 3 boss fights where the extended fight length gives the engine time to generate enormous returns.

05Key Relics for the Silent

The Silent benefits from both universal relics and a set of character-specific ones that directly amplify her mechanics:

• Snecko Eye — draw 2 extra cards each turn; randomise the cost of all cards in your hand. In a Shiv build this barely matters (Shivs cost 0 already), but the extra 2 cards per turn dramatically increases how many Blade Dances and Accuracies you see. High value even with the drawback.
• Ornamental Fan — after playing 3 Attacks in a single turn, gain 4 Block. In a Shiv build you play 5–10 Attacks per turn — this becomes 4+ Block per burst freely.
• Kunai — after playing 3 Attacks in a turn, gain 1 Dexterity permanently. Stacks rapidly in a Shiv build; each stack adds 1 to all Block cards for the rest of the run.
• Shuriken — after playing 3 Attacks in a turn, gain 1 Strength permanently. Same trigger as Kunai but adds damage; both relics together make a Shiv build scale into the late game.
• Tingsha — when you discard a card during your turn, deal 3 damage to a random enemy. In a Discard build, each Acrobatics discard becomes a free 3-damage ping. With multiple discards per turn, Tingsha alone can deal 15–20 damage.
• Tough Bandages — when you discard a card during your turn, gain 3 Block. The defensive equivalent of Tingsha. In a discard-heavy build, this provides enormous free Block each turn.
• Pen Nib (universal) — every 10th Attack deals double damage. With Shivs counted individually, a 10-Shiv burst hits the double-damage window inside a single turn.
• Bag of Preparation (universal) — draw 2 extra cards on turn 1. The Silent's 7-card turn-1 opens to 9 with this relic — nearly half your starting deck visible on the first turn, making the Ring of the Snake combo exceptional.

06Tips for Playing the Silent

• Pick a primary archetype before Act 2. The Silent's three builds require different card pools and diluting between them produces a weak generalist deck. By the time you enter Act 2, commit to one and skip cards that don't serve it.
• Card removal is more important here than on any other character. Every Strike and Defend you remove speeds up your cycling and makes Poison tick, Shiv burst, or discard triggers more consistent. Prioritise the shop's card removal service in Act 1 and early Act 2.
• Don't skip Block even in the Poison build. The Silent's 70 HP means a single overlooked Elite attack can drop you dangerously low. Blur (gain 6 Block, retain it into the next turn) and Escape Plan (draw 1 card, gain 4 Block if it's a Skill) are cost-efficient options.
• Catalyst is not an every-run card. If your current run has low Poison application, Catalyst is dead weight — you need at least 10 Poison stacks on the enemy before using it to get meaningful value. In a run where you're only applying 4 stacks per turn, skip it and pivot toward Shivs or Discard.
• Against multi-enemy rooms, Noxious Fumes outclasses Deadly Poison. Deadly Poison applies to one target; Noxious Fumes poisons everything over several turns. In large mob rooms (Act 2 in particular), Noxious Fumes is the more efficient card even though it's a Power that costs Energy upfront.
• Keep Shiv count low if not running Accuracy. Shivs without Accuracy deal only 4 damage each. One or two in a hand is fine for triggering Envenom or adding chip damage, but generating 6 Shivs without Accuracy active is 24 damage for multiple card slots — worse than most attack cards. Shiv builds only make sense once Accuracy is in play.
• Early Access note: Slay the Spire 2 is actively patched. Card values and relic effects may have changed since this guide was written. Cross-reference the in-game card text when in doubt.