Anzrag, the Quake-Mole (MKM 385)

Legendary Creature — Mole God • Mana cost: {2}{R}{G} • Murders at Karlov Manor • Mythic

Whenever Anzrag becomes blocked, untap each creature you control. After this phase, there is an additional combat phase.
{3}{R}{R}{G}{G}: Anzrag must be blocked each combat this turn if able.

Illustrated by Ivan Shavrin.