M:tG card similarity search
1RR · Enchantment
{X}, Discard a card with mana value X: Knollspine Invocation deals X damage to any target.
| Name | Mana | Type | Text |
|---|---|---|---|
| Gelatinous Cube | 2BB | Creature — Ooze | Engulf — When Gelatinous Cube enters the battlefield, exile target non-Ooze creature an opponent controls until Gelatinous Cube leaves the battlefield. Dissolve — {X}{B}: Put target creature card with mana value X exiled with Gelatinous Cube into its owner's graveyard. 4/3 |
| Lava Burst | XR | Sorcery | Lava Burst deals X damage to any target. If Lava Burst would deal damage to a creature, that damage can't be prevented or dealt instead to another permanent or player. |
| Megrim | 2B | Enchantment | Whenever an opponent discards a card, Megrim deals 2 damage to that player. |
| Mental Misstep | U/P | Instant | ({U/P} can be paid with either {U} or 2 life.) Counter target spell with mana value 1. |
| Spell Snare | U | Instant | Counter target spell with mana value 2. |
| Putrid Cyclops | 2B | Creature — Zombie Cyclops | When Putrid Cyclops enters the battlefield, scry 1, then reveal the top card of your library. Putrid Cyclops gets -X/-X until end of turn, where X is that card's mana value. (To scry 1, look at the top card of your library, then you may put that card on the bottom of your library.) 3/3 |
| Kaervek the Merciless | 5BR | Legendary Creature — Human Shaman | Whenever an opponent casts a spell, Kaervek the Merciless deals damage equal to that spell's mana value to any target. 5/4 |
| Green Sun's Zenith | XG | Sorcery | Search your library for a green creature card with mana value X or less, put it onto the battlefield, then shuffle. Shuffle Green Sun's Zenith into its owner's library. |
| Floodwater Dam | 3 | Artifact | {X}{X}{1}, {T}: Tap X target lands. |
| Mishra's Helix | 5 | Artifact | {X}, {T}: Tap X target lands. |