Scroll Rack (16) [Commander's Arsenal] CMD If you sacrifice an Island

If you sacrifice an Island this way

Set: Alpha Edition Type: Creature — Wall Rarity: Uncommon Cost: {1}{U}{U} Defender (This creature can't attack

Sacrifice Arid Mesa: Search your library for a Mountain or Plains card

Set: Unlimited Edition Type: Creature — Elf Archer Rarity: Rare Cost: {1}{G} First strike

choose a letter

Scroll Rack (16) [Commander's Arsenal] CMD If you sacrifice an IslandSet: Commander's Arsenal Type: Artifact Rarity: Rare Cost: {2} {1}, {T}: Exile any number of cards from your hand face down. Put that many cards from the top of your library into your hand. Then look at the exiled cards and put them on top of your library in any order.