Natural Selection [International Collectors' Edition] San Diego Comic-Con 2013 It has "Sacrifice this creature:

It has "Sacrifice this creature: Add {C}

Sometimes you have to search for inspiration

every branch

Set: Champs and States Type: Creature — Elf Warrior Rarity: Rare Cost: {1}{G} Each other Warrior creature you control enters the battlefield with an additional +1/+1 counter on it

Set: Portal Three Kingdoms Type: Creature — Bear Rarity: Common Cost: {1}{G} Fish and bear paws—one can't have both

Natural Selection [International Collectors' Edition] San Diego Comic-Con 2013 It has "Sacrifice this creature:Set: International Collectors' Edition Type: Instant Rarity: Rare Cost: {G} Look at the top three cards of target player's library, then put them back in any order. You may have that player shuffle.