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 |
|---|---|---|---|
| Heart of Bogardan | 2RR | Enchantment | Cumulative upkeep {2} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) When a player doesn't pay Heart of Bogardan's cumulative upkeep, Heart of Bogardan deals X damage to target player or planeswalker and each creature that player or that planeswalker's controller controls, where X is twice the number of age counters on Heart of Bogardan minus 2. |
| Ride the Avalanche | GU | Instant | The next spell you cast this turn can be cast as though it had flash. When you next cast a spell this turn, put X +1/+1 counters on up to one target creature, where X is the mana value of that spell. |
| Obosh, the Preypiercer | 3B/RB/R | Legendary Creature — Hellion Horror | Companion — Your starting deck contains only cards with odd mana values and land cards. (If this card is your chosen companion, you may put it into your hand from outside the game for {3} as a sorcery.) If a source you control with an odd mana value would deal damage to a permanent or player, it deals double that damage to that permanent or player instead. 3/5 |
| Necron Overlord | 2BB | Artifact Creature — Necron Noble | Relentless March — {X}, {T}, Tap X untapped artifacts you control: Target opponent loses X life. 2/5 |
| Postmortem Lunge | XB/P | Sorcery | ({B/P} can be paid with either {B} or 2 life.) Return target creature card with mana value X from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step. |
| Cabal Conditioning | 6B | Sorcery | Any number of target players each discard a number of cards equal to the highest mana value among permanents you control. |
| Demon of Fate's Design | 4BB | Enchantment Creature — Demon | Flying, trample Once during each of your turns, you may cast an enchantment spell by paying life equal to its mana value rather than paying its mana cost. {2}{B}, Sacrifice another enchantment: Demon of Fate's Design gets +X/+0 until end of turn, where X is the sacrificed enchantment's mana value. 6/6 |
| Rot Hulk | 5BB | Creature — Zombie | Menace When Rot Hulk enters the battlefield, return up to X target Zombie cards from your graveyard to the battlefield, where X is the number of opponents you have. 5/5 |
| Flaming Gambit | XR | Instant | Flaming Gambit deals X damage to target player or planeswalker. That player or that planeswalker's controller may choose a creature they control and have Flaming Gambit deal that damage to it instead. Flashback {X}{R}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.) |
| Rock Slide | XR | Instant | Rock Slide deals X damage divided as you choose among any number of target attacking or blocking creatures without flying. |