Last updated: 29 August 2026

How to Beat Savage Beastfly in Silksong

The Savage Beastfly has earned a reputation as one of Silksong's most hated optional bosses — it even has its own dedicated hate-subreddit. It isn't a complex fight on paper: two attacks, a small arena. What makes it brutal is the endless stream of bugs it summons while you're already dodging in tight quarters. Here's where to find it, what it does, and how to actually win.

01Where to Find the Savage Beastfly

The Savage Beastfly shows up twice, in two different regions:

• Hunter's March (Act 1) — inside the Chapel of the Beast, in the bottom-right corner of the region. You need the Drifter's Cloak (the glide upgrade) to ride the wind current into the chapel's entrance. This encounter is completely optional.
• Far Fields (Act 2) — a tougher rematch in the Fourth Chorus boss arena, unlocked as the Grand Hunt wish from Bellhart. This one only becomes available after you defeat the Cogwork Dancers.

Neither fight blocks story progress — you can skip both and come back later if you're not ready.

02Should You Fight It Right Away?

You can challenge the Hunter's March Beastfly as soon as you reach it, but most guides agree it's a rough difficulty spike that early. It's worth waiting until you've picked up the Cling Grip wall-jump ability (from Shellwood) for better evasion in the cramped chapel, along with a few extra mask shards and a needle upgrade or two.

03Savage Beastfly Attacks

The moveset is short, which is exactly why the fight is deceptive:

• Charge attack — the Beastfly dashes wall-to-wall across the arena, adjusting its height to your position. Getting hit costs a full two masks.
• Triple downward slam — it hovers overhead and slams into the ground up to three times in quick succession, damaging any bugs caught underneath it too.
• Bug summons — cages fall from above, releasing smaller Beastflies and Kiliks (Far Fields swaps in fire-flaming Tarflies for its second phase). Spawns feel effectively endless if you let the fight drag on.

Those three moves, combined with a small arena and constant adds, are what make this fight feel harder than its simple pattern suggests.

04Strategy to Beat It

1. Bait the charge into a wall. Stand near an edge so the charge slams the Beastfly into the wall, stunning it briefly and opening a free punish window.
2. Hit its sides during the slam. Position about two Hornet-lengths from where it's about to land, then swing as it hits the ground — this is your most reliable damage window.
3. Treat it as a DPS race, not a dodge fight. The longer the fight runs, the more bugs pile up. Play aggressively between its two attacks instead of turtling.
4. Clear summoned bugs fast. Thread Storm is especially good here since it hits the boss and clears adds in the same swing — don't let the arena fill up.
5. Let the Beastfly kill its own summons. Its slam and charge both damage the smaller bugs it spawns, so baiting those attacks near a cluster of adds saves you time.
6. Bring the Reaper Crest if you have it. Its wide downward-strike arc lines up well with the slam-punish window and nets extra hits other Crests miss.

05Reward

Beating the Hunter's March Savage Beastfly unlocks the Beast Crest — a Crest with only two red Tool slots (one fewer than most Crests), but which puts Hornet into a rage-style mode on Bind: attacks hit harder and landing hits recovers HP. The Far Fields rematch, completed through the wish board, rewards a mask shard instead.