Antewise

How to Beat Vantom in Slay the Spire 2

Updated 16 Oct 2026 Source STS2 Companion boss guide, retrieved 16 October 2026 By
Data status: The facts on this page were checked against the source named above. Game values can still shift with a patch, so re-check anything that looks off.

Vantom is a boss in Slay the Spire 2. Here is what she or he does, the moves to expect, and the order that actually wins.

A shadow creature that shields itself with Slippery stacks, absorbing your first hits before revealing its true vulnerability.

The fight at a glance

ActAct 1a
LocationOvergrowth
DifficultyMedium
HP173
Key mechanicSlippery

The rotation

Vantom follows a strict four-turn cycle: Ink Blot → Inky Lance → Dismember → Prepare, then repeats. Damage escalates each cycle as Strength stacks.

Moves

MoveWhat it does
Ink BlotLight attack dealing 7 damage.
Inky LanceMedium attack dealing 14 damage.
DismemberHeavy attack dealing ~20 damage and shuffling 3 Wound status cards into your deck.
PrepareVantom buffs itself with Strength, increasing all future damage.

How to beat Vantom

  • Bring multi-hit cards to burn through the 9 Slippery stacks as fast as possible. Low-cost attacks and cards like Pummel or Shivs are ideal. Once Slippery is gone, switch to your strongest attacks to finish the fight before Strength stacking gets out of hand. Save Block for the Dismember turn (turn 3 of each cycle).
  • Multi-hit attacks remove Slippery stacks fastest — each individual hit consumes one stack
  • Wounds clog your deck, so card removal after this fight is valuable
  • The Prepare turn is a free setup turn — use it to play Powers or buff cards

Where to go next

The boss table lists every boss with HP and key mechanic. The deckbuilding basics page covers building for fights like this one. For the exact HP, Ascension HP and every move’s damage per hit, see the Vantom monster entry.

Frequently asked questions

How much HP does Vantom have?

173 HP in Slay the Spire 2.

What is Vantom's key mechanic?

Slippery

How do you beat Vantom?

Bring multi-hit cards to burn through the 9 Slippery stacks as fast as possible. Low-cost attacks and cards like Pummel or Shivs are ideal. Once Slippery is gone, switch to your st

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Sources

Figures and item data on this site are read from the game’s own reference wiki before publishing. Where a value could not be confirmed there, the page says so instead of filling the gap.