Earthen Ally c19 The mayhem cost is equal

The mayhem cost is equal to its mana cost

destroy target nonartifact creature that player controls of their choice

or tapped creature an opponent controls

Scavenging Sentinel (When this creature enters the battlefield

{T}: Create a 0/1 colorless Eldrazi Spawn creature token with "Sacrifice this creature: Add {C}

Earthen Ally c19 The mayhem cost is equalThis creature gets +1 +0 for each color among Allies you control. {2}{W}{U}{B}{R}{G}: Earthbend 5. (Target land you control becomes a 0 0 creature with haste that's still a land. Put five +1 +1 counters on it. When it dies or is exiled, return it to the battlefield tapped.)