Liberator, Urza's Battlethopter 2286 (Secret Lair Drop Series)

Flash Flying You may cast colorless spells and artifact spells as though they had flash. Whenever you cast a spell, if the amount of mana spent to cast that spell is greater than Liberator's power, put a +1/+1 counter on Liberator.

NM - $14.00
LP - $11.20
MP - $8.40
HP - $5.60
DMG - $2.80