M:tG card similarity search
1U · Instant
Counter target spell if its mana value is less than or equal to the highest mana value among permanents you control.
| Name | Mana | Type | Text |
|---|---|---|---|
| Law-Rune Enforcer | W | Creature — Human Soldier | {1}, {T}: Tap target creature with mana value 2 or greater. 1/2 |
| Carnivorous Canopy | 2G | Sorcery | Destroy target artifact, enchantment, or creature with flying. If that permanent's mana value was 3 or less, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.) |
| Perilous Voyage | 1U | Instant | Return target nonland permanent you don't control to its owner's hand. If its mana value was 2 or less, scry 2. |
| Plunderer's Prize | XU | Sorcery | Seek a nonland artifact card with mana value X or less and put it onto the battlefield. If a card with mana value less than X is put onto the battlefield this way, this spell perpetually gains "This spell costs {1} more to cast," then return this spell to its owner's hand. |
| Feed the Swarm | 1B | Sorcery | Destroy target creature or enchantment an opponent controls. You lose life equal to that permanent's mana value. |
| Calamity of the Titans | 4CC | Sorcery | As an additional cost to cast this spell, reveal a colorless creature card from your hand. Exile each creature and planeswalker with mana value less than the revealed card's mana value. |
| Boon of Boseiju | 1G | Instant | Target creature gets +X/+X until end of turn, where X is the greatest mana value among permanents you control. Untap it. |
| Teshar, Ancestor's Apostle | 3W | Legendary Creature — Bird Cleric | Flying Whenever you cast a historic spell, return target creature card with mana value 3 or less from your graveyard to the battlefield. (Artifacts, legendaries, and Sagas are historic.) 2/2 |
| Aluren | 2GG | Enchantment | Any player may cast creature spells with mana value 3 or less without paying their mana costs and as though they had flash. |
| Spell Swindle | 3UU | Instant | Counter target spell. Create X Treasure tokens, where X is that spell's mana value. (They're artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.") |