Azlask, the Swelling Scourge 5 (Commander: Modern Horizons 3)

Whenever Azlask or another colorless creature you control dies, you get an experience counter. {W}{U}{B}{R}{G}: Creatures you control get +X/+X until end of turn, where X is the number of experience counters you have. Scions and Spawns you control gain indestructible and annihilator 1 until end of turn.

NM - $2.20
LP - $2.20
MP - $2.20
HP - $2.20
DMG - $2.20