Master Biomancer [Commander 2021] Ultra Pro Whenever an opponent casts an

Whenever an opponent casts an artifact

then an opponent gains control of them

and the rise of the vampire clans

Each land with an activated ability that isn't a mana ability doesn't untap during its controller's untap step

Master Biomancer [Commander 2021] Ultra Pro Whenever an opponent casts anSet: Commander 2021 Type: Creature Elf Wizard Rarity: Mythic Cost: {2}{G}{U} Each other creature you control enters the battlefield with a number of additional +1 +1 counters on it equal to Master Biomancer's power and as a Mutant in addition to its other types. "Nature is a wonderful engineer but works far too slowly for my tastes."