Rukarumel, Biologist [Commander Masters] Centaur Detective sacrifice it unless {R} was

sacrifice it unless {R} was spent to cast it

Set: Urza's Legacy Type: Enchantment Rarity: Rare Cost: {3}{G} At the beginning of your upkeep

put a 1/1 green Saproling creature token onto the battlefield

Then copy that spell

"Of all the things that can be stolen

Rukarumel, Biologist [Commander Masters] Centaur Detective sacrifice it unless {R} wasSet: Commander Masters Type: Legendary Creature Human Wizard Rarity: Mythic Cost: {W}{U}{B}{R}{G} As Rukarumel, Biologist enters the battlefield, choose a creature type. Slivers yyou 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.