Flying (This creature can't be blocked except by creatures with flying or reach.)First strike (This creature deals combat damage before creatures without first strike.)At the beginning of your upkeep, you may sacrifice an artifact. If you don't, tap Yawgmoth Demon and it deals 2 damage to you.
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)Colossus of Sardia doesn't untap during your untap step.: Untap Colossus of Sardia. Activate only during your upkeep.
Whenever an artifact an opponent controls becomes tapped or an opponent activates an artifact's ability without in its activation cost, you gain 1 life.
As The Rack enters, choose an opponent.At the beginning of the chosen player's upkeep, The Rack deals X damage to that player, where X is 3 minus the number of cards in their hand.
Whenever an artifact becomes tapped or a player activates an artifact's ability without in its activation cost, Haunting Wind deals 1 damage to that artifact's controller.
FlyingClockwork Avian enters with four +1/+0 counters on it.At end of combat, if Clockwork Avian attacked or blocked this combat, remove a +1/+0 counter from it., : Put up to X +1/+0 counters on Clockwork Avian. This ability can't cause the total number of +1/+0 counters on Clockwork Avian to be greater than four. Activate only during your upkeep.
