Bloodburn

Upgrade • Cost: 3

Whenever a unit dies, put a blood rune on this (limit: 4).
⤵, remove two blood runes → Deal 1 damage to a unit or building.

Red Tech 0

Card-Specific Rulings

You can't exhaust this to use the ability the turn it comes under your control because it doesn't have haste. — Sirlin, 03/03/16