| Set | Date | Rarity | Treatment |
|---|---|---|---|
| OPCA #51 | 2016-11-25 | Common | Standard |
| DCI #44 | 2009-10-31 | Rare | Standard |
Whenever a player casts a spell, that player flips a coin. If the player loses the flip, counter that spell.
Whenever chaos ensues, target player reveals the top card of their library. If it's a nonland card, you may cast it without paying its mana cost.