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Heartcore

assassin / Mastery

Heartcore

What it does

Activates after a critical hit, dealing area damage and restoring MP.

Recommended Specialty

Group PvE Dungeon first choice · select only when unlocked.

Show selected options by activity & level →
Specialty · first pickUp to +20% Critical Hit when less targets hit

Favor a boss or a small number of targets.

Switch when: These selections apply if you use this skill. They do not raise its investment priority.

Total 8 · 1 slot
3 Up to +20% Critical Hit when less targets hit
Total 12 · 2 slots
3 Up to +20% Critical Hit when less targets hit4 Multi-Hit on hit
Total 16 · 2 slots
5 Resets [Heart Gore] cooldown on landing a Critical Hit3 Up to +20% Critical Hit when less targets hit
Total 20 · 3 slots
5 Resets [Heart Gore] cooldown on landing a Critical Hit3 Up to +20% Critical Hit when less targets hit4 Multi-Hit on hit
All 5 options

1 Absorbs 0.7% HP Requires total 8

2 Engraves 1 Insignia for 10s on hit Requires total 8

3 Up to +20% Critical Hit when less targets hit Requires total 8

4 Multi-Hit on hit Requires total 12

5 Resets [Heart Gore] cooldown on landing a Critical Hit Requires total 16

Line numbers identify the options from top to bottom. At total 16, all five options are available, but you still have two slots. The third slot opens at total 20. These are optional later setups, not a requirement to raise this skill to 20.

Global 1.0.21.0 client-data display; editorial recommendations · 2026-10-04

Group and dungeon alternatives · Farm choices · Questing choices

Read it in context

This is a short functional summary of the reference-client guide entry. Trigger conditions, available specializations and rank-dependent values should be checked in the current client before investing.

Open assassin build and rotation →

How to use it

The critical-reset milestone is a main progression goal. Elusive Clone enables a faster burst window.

Upgrade milestones

  • Total level 16: Critical-reset option is a key developed milestone; early HP absorption is a different goal.
Official reference-client skill source ↗