Natural Selection (CE) [Collectors’ Edition] Elemental Shaman sacrifice Koskun Falls unless you

sacrifice Koskun Falls unless you tap an untapped creature you control

Set: Legends Type: Enchantment Uncommon Cost: {1}{G} At the beginning of your draw step

Lord of Shu gets +2/+2 as long as you control a permanent named Guan Yu

Fascinated by the lore of ancient struggles

Set: Odyssey Type: Sorcery Rare Cost: {3}{B}{B} Exile all cards from target player's graveyard other than basic land cards

Natural Selection (CE) [Collectors’ Edition] Elemental Shaman sacrifice Koskun Falls unless youSet: Collectors Edition Type: Instant 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 their library.