Scroll Rack (16) [Commander's Arsenal] CMD if an opponent controls more

if an opponent controls more lands than you

{B}: Transform Bloodline Keeper

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

Set: Mirrodin Type: Creature — Elemental Rarity: Rare Cost: {3}{U}{U} {U}: Quicksilver Elemental gains all activated abilities of target creature until end of turn

Scroll Rack (16) [Commander's Arsenal] CMD if an opponent controls moreSet: 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.