As an additional cost to play Flock of the Feather Walkers, reveal a card in your hand with cost 1 or less.
Create a Quicken token. (It's an aura with "When you play an attack action card or attack with a weapon, destroy Quicken then the attack gains go again.)
Near Mint Unlimited Normal - $0.25
Lightly Played Unlimited Normal - $0.20
Moderately Played Unlimited Normal - $0.17
Heavily Played Unlimited Normal - $0.15
Damaged Unlimited Normal - $0.13