M:tG card similarity search
2R · Instant
You may sacrifice a Mountain rather than pay this spell's mana cost. Target creature gets +X/+0 until end of turn, where X is the number of Mountains you control.
| Name | Mana | Type | Text | 
|---|---|---|---|
| Fireblast | 4RR | Instant | You may sacrifice two Mountains rather than pay this spell's mana cost. Fireblast deals 4 damage to any target. | 
| Force of Will | 3UU | Instant | You may pay 1 life and exile a blue card from your hand rather than pay this spell's mana cost. Counter target spell. | 
| Ramosian Rally | 3W | Instant | If you control a Plains, you may tap an untapped creature you control rather than pay this spell's mana cost. Creatures you control get +1/+1 until end of turn. | 
| Foil | 2UU | Instant | You may discard an Island card and another card rather than pay this spell's mana cost. Counter target spell. | 
| Arrow Volley Trap | 3WW | Instant — Trap | If four or more creatures are attacking, you may pay {1}{W} rather than pay this spell's mana cost. Arrow Volley Trap deals 5 damage divided as you choose among any number of target attacking creatures. | 
| Electrodominance | XRR | Instant | Electrodominance deals X damage to any target. You may cast a spell with mana value X or less from your hand without paying its mana cost. | 
| 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 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. | 
| Epistolary Librarian | 2WU | Creature — Astartes Wizard | Veil of Time — Whenever Epistolary Librarian attacks, you may cast a spell with mana value X or less from your hand without paying its mana cost, where X is the number of attacking creatures. 3/4 | 
| Inferno Trap | 3R | Instant — Trap | If you've been dealt damage by two or more creatures this turn, you may pay {R} rather than pay this spell's mana cost. Inferno Trap deals 4 damage to target creature. |