Cheapest priced copy (The Brothers' War): $10.99 at Card Kingdom, near mint, their price list as of .
Liberator, Urza's Battlethopter 
Legendary Artifact Creature — Thopter · 1/2 · Rare · The Brothers' War · #364
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.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
5 printings · $10.99 to $22.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The Brothers' War | 237 | Rare | $10.99 | $11.99 |
| The Brothers' War | 364 | Rare | $10.99 | $22.99 |
| The Brothers' War Promos | 237p | Rare | $10.99Out of stock | $10.99 |
| The Brothers' War Promos | 237s | Rare | — | $15.99 |
| Secret Lair Drop | 2286 | Rare | $11.99 | $13.99 |
2 rulings from Wizards of the Coast
- 14 October 2022The third ability applies only to casting spells. It does not, for example, change when you may activate abilities that can be activated "only as a sorcery."
- 14 October 2022The last ability cares only about the amount of mana that was actually spent to cast the spell, regardless of its mana cost.