Ordeal of Heliod - Theros - 25

Enchantment — Aura

Mana Cost: {1}{W}

Enchant creature
Whenever enchanted creature attacks, put a +1/+1 counter on it. Then if it has three or more +1/+1 counters on it, sacrifice this Aura.
When you sacrifice this Aura, you gain 10 life.

Uncommon · Theros · #25 (THS)

Illustrated by Lucas Graciano