Attack Pattern Viewer

View complete attack patterns for all monsters and bosses

Enemy Type

Select Enemy(106)

Select an Enemy

Choose a monster or boss from the list to view their attack patterns

Why Attack Patterns Matter in Slay the Spire 2

Unlike many roguelikes, Slay the Spire 2 telegraphs every enemy move in advance. Each monster and boss shows you their next action before you decide what to do. Knowing the full attack pattern — not just the current move — lets you plan multiple turns ahead.

For example, if you know an elite will deal 15 damage this turn and 28 damage next turn, you should prioritize block on the turn before the heavy hit — even if you could deal more damage by attacking. This tool gives you that knowledge for every enemy in the game.

How Monster AI Works

Most normal monsters follow a fixed cycle. They perform Move A, then Move B, then Move C, then repeat. The Turn Counter in this tool lets you simulate where in the cycle the enemy currently is.

Elite monsters and bosses are more complex. Some have phase transitions — their move set changes when they drop below a certain HP threshold. Others have conditional moves that only trigger in specific situations. Always read the Special Mechanics section carefully for boss fights.

Boss Fight Strategy Tips

Know the Phase Transitions

Many STS2 bosses change behavior at 50% or 25% HP. When a boss enters a new phase, they often use a powerful ability immediately. Be ready with block or try to burst through the threshold in a single turn to avoid the phase-change move entirely.

Identify the Dangerous Turns

Every boss has a "spike" turn where they deal exceptional damage. Find it in the attack pattern, count the turns until it arrives, and make sure you have enough block ready. Missing a spike can end a run at full HP.

Exploit Buff Turns

Many bosses spend one turn buffing themselves (gaining Strength, Ritual, or Metallicize). This is your free turn to deal maximum damage without needing to block. Spending this turn on defense is often a mistake.

Elite Enemy Priorities

Elites are optional fights that offer powerful relics as rewards. However, they deal significantly more damage than normal enemies. Before fighting an elite, look up their pattern here and ask:

  • •Can my deck handle their peak damage turn without taking lethal?
  • •Do they apply debuffs that will cripple my strategy (Weak, Frail, Vulnerable)?
  • •How many turns will it take to kill them, and how much total damage will I take?
  • •Is the relic reward worth the HP cost going into the next boss?

Pro tip: Combine the Attack Pattern Viewer with the Damage Calculator — look up the enemy's incoming damage, then calculate if your block covers it. This two-tool combo removes almost all uncertainty from combat decisions.

Frequently Asked Questions

Do all monsters follow a fixed attack pattern?

Most normal monsters cycle through a fixed move sequence. Elites and bosses are more complex — some have conditional moves or phase transitions that change their pattern when they drop below an HP threshold.

How does the Turn Counter work?

The Turn Counter simulates which move in the cycle the enemy is currently on. Turn 1 shows their first move, Turn 2 their second, and so on. When the cycle ends it repeats from the beginning.

What are phase transitions?

Some bosses change their move set entirely when they reach certain HP thresholds (e.g., 50% or 25% HP). They often use a powerful ability immediately upon entering a new phase. Check the Special Mechanics section for each boss.

Should I always fight elites?

Not always. Elites offer powerful relics but deal significant damage. Before engaging, look up their pattern here to estimate total incoming damage. If you can't survive their spike turn, consider skipping.

Why do some moves show no damage value?

Some moves are buffs, debuffs, or special actions that deal no direct damage (e.g., gaining Strength, applying Weak, or shuffling cards). These are still important to track because they affect the following turns.