Rukarumel, Biologist - [Foil, Extended Art] Commander Masters (CMM) J17 with a combination of 4

with a combination of 4 cards of rarity Rare or higher

toss a boomerang

Whenever you cast a red spell

Flying {T}: Target creature gains flying until end of turn

"I do not hate the living

Rukarumel, Biologist - [Foil, Extended Art] Commander Masters (CMM) J17 with a combination of 4As Rukarumel, Biologist enters the battlefield, choose a creature type. Slivers you control and nontoken creatures you control are the chosen type in addition to their other creature types. The same is true for creature spells you control and creature cards you own that aren't on the battlefield. {3}, {T}: Create a 1 1 colorless Sliver creature token.