M:tG card similarity search
2BB · Sorcery
If an opponent controls a Plains and you control a Swamp, you may cast this spell without paying its mana cost. All creatures get -2/-2 until end of turn.
| Name | Mana | Type | Text | 
|---|---|---|---|
| Toxic Deluge | 2B | Sorcery | As an additional cost to cast this spell, pay X life. All creatures get -X/-X until end of turn. | 
| Faerie Fencing | XB | Instant | Target creature gets -X/-X until end of turn. That creature gets an additional -3/-3 until end of turn if you controlled a Faerie as you cast this spell. | 
| Singing Towers of Darillium | Plane — Darillium | Each nonland card in your hand without foretell has foretell. Its foretell cost is equal to its mana cost reduced by {2}. (During your turn, you may pay {2} and exile it from your hand face down. Cast it on a later turn for its foretell cost.) Whenever chaos ensues, you may cast a foretold card you own from exile without paying its mana cost this turn. | |
| Qarsi Deceiver | 1U | Creature — Naga Wizard | {T}: Add {C}. Spend this mana only to cast a face-down creature spell, pay a mana cost to turn a manifested creature face up, or pay a morph cost. (A megamorph cost is a morph cost.) 0/4 | 
| Darksteel Monolith | 8 | Artifact | Indestructible Once each turn, you may pay {0} rather than pay the mana cost for a colorless spell that you cast from your hand. | 
| Obscuring Haze | 2G | Instant | If you control a commander, you may cast this spell without paying its mana cost. Prevent all damage that would be dealt this turn by creatures your opponents control. | 
| The Face of Boe | 1URW | Legendary Creature — Alien Advisor | {T}: You may cast a spell with suspend from your hand. If you do, pay its suspend cost rather than its mana cost. Activate only as a sorcery. 0/4 | 
| Lethal Exploit | 1B | Instant | Target creature gets -2/-2 until end of turn. It gets an additional -1/-1 until end of turn for each modified creature you controlled as you cast this spell. (Equipment, Auras you control, and counters are modifications.) | 
| Downhill Charge | 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. | 
| Sivvi's Ruse | 2WW | Instant | If an opponent controls a Mountain and you control a Plains, you may cast this spell without paying its mana cost. Prevent all damage that would be dealt this turn to creatures you control. |