The Bloodwarden draws power from combat, accumulating Blood stacks through auto-attacks and kills. Blood does not decay — it is spent deliberately or banked for power.
When the Bloodwarden reaches 20 Blood (maximum), their next ability that would normally cost health is cast for free. All 20 stacks are consumed. The caster gains Blood Surge — a 3-second visual state granting a 3% maximum health self-heal on the free cast.
This threshold does not trigger automatically — the Bloodwarden must choose when to spend it. The brighter the pool, the more power the next cast carries.
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Accumulates across all ticks.
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