M:tG card similarity search
2UU · Instant — Trap
If an opponent cast three or more spells this turn, you may pay {0} rather than pay this spell's mana cost. Exile any number of target spells.
| Name | Mana | Type | Text | 
|---|---|---|---|
| Force of Despair | 1BB | Instant | If it's not your turn, you may exile a black card from your hand rather than pay this spell's mana cost. Destroy all creatures that entered the battlefield this turn. | 
| Rouse | 1B | Instant | If you control a Swamp, you may pay 2 life rather than pay this spell's mana cost. Target creature gets +2/+0 until end of turn. | 
| Pulverize | 4RR | Sorcery | You may sacrifice two Mountains rather than pay this spell's mana cost. Destroy all artifacts. | 
| Sunscour | 5WW | Sorcery | You may exile two white cards from your hand rather than pay this spell's mana cost. Destroy all creatures. | 
| Dream Halls | 3UU | Enchantment | Rather than pay the mana cost for a spell, its controller may discard a card that shares a color with that spell. | 
| Grenzo, Crooked Jailer | 4BR | Legendary Creature — Goblin Rogue | When Grenzo enters the battlefield and at the beginning of your upkeep, heist target opponent's library. Once each turn, you may pay {0} rather than pay the mana cost for a spell you cast that you don't own. 6/4 | 
| Cobra Trap | 4GG | Instant — Trap | If a noncreature permanent under your control was destroyed this turn by a spell or ability an opponent controlled, you may pay {G} rather than pay this spell's mana cost. Create four 1/1 green Snake creature tokens. | 
| Skyshroud Cutter | 3G | Creature — Beast | If you control a Forest, rather than pay this spell's mana cost, you may have each other player gain 5 life. 2/2 | 
| Force of Virtue | 2WW | Enchantment | If it's not your turn, you may exile a white card from your hand rather than pay this spell's mana cost. Flash Creatures you control get +1/+1. | 
| Ingenious Mastery | X2U | Sorcery | You may pay {2}{U} rather than pay this spell's mana cost. If the {2}{U} cost was paid, you draw three cards, then an opponent creates two Treasure tokens and they scry 2. If that cost wasn't paid, you draw X cards. |