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 |
|---|---|---|---|
| Chamber Sentry | X | Artifact Creature — Construct | Chamber Sentry enters the battlefield with a +1/+1 counter on it for each color of mana spent to cast it. {X}, {T}, Remove X +1/+1 counters from Chamber Sentry: It deals X damage to any target. {W}{U}{B}{R}{G}: Return Chamber Sentry from your graveyard to your hand. 0/0 |
| Winter Blast | XG | Sorcery | Tap X target creatures. Winter Blast deals 2 damage to each of those creatures with flying. |
| Chord of Calling | XGGG | Instant | Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Search your library for a creature card with mana value X or less, put it onto the battlefield, then shuffle. |
| Mind Warp | X3B | Sorcery | Look at target player's hand and choose X cards from it. That player discards those cards. |
| Wargate | XGWU | Sorcery | Search your library for a permanent card with mana value X or less, put it onto the battlefield, then shuffle. |
| Mystic Genesis | 2GUU | Instant | Counter target spell. Create an X/X green Ooze creature token, where X is that spell's mana value. |
| Monstrous Onslaught | 3GG | Sorcery | Monstrous Onslaught deals X damage divided as you choose among any number of target creatures, where X is the greatest power among creatures you control as you cast this spell. |
| Hatchery Spider | 5GG | Creature — Spider | Reach Undergrowth — When you cast this spell, reveal the top X cards of your library, where X is the number of creature cards in your graveyard. You may put a green permanent card with mana value X or less from among them onto the battlefield. Put the rest on the bottom of your library in a random order. 5/7 |
| Cloudkill | 4BB | Sorcery | All creatures get -X/-X until end of turn, where X is the greatest mana value of a commander you own on the battlefield or in the command zone. |
| Confront the Past | XB | Sorcery — Lesson | Choose one — • Return target planeswalker card with mana value X or less from your graveyard to the battlefield. • Remove twice X loyalty counters from target planeswalker an opponent controls. |