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

If you sacrifice an Island this way

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

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

if an opponent controls more lands than you

This ability can't cause the total number of +1/+0 counters on Clockwork Avian to be greater than four

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.