M:tG card similarity search
1U · Instant
Counter target spell unless its controller pays {X}, where X is your devotion to blue. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.)
| Name | Mana | Type | Text |
|---|---|---|---|
| Eight-and-a-Half-Tails | WW | Legendary Creature — Fox Cleric | {1}{W}: Target permanent you control gains protection from white until end of turn. {1}: Target spell or permanent becomes white until end of turn. 2/2 |
| Sunbird's Invocation | 5R | Enchantment | Whenever you cast a spell from your hand, reveal the top X cards of your library, where X is that spell's mana value. You may cast a spell with mana value X or less from among cards revealed this way without paying its mana cost. Put the rest on the bottom of your library in a random order. |
| Diseased Vermin | 2B | Creature — Rat | Whenever Diseased Vermin deals combat damage to a player, put an infection counter on it. At the beginning of your upkeep, Diseased Vermin deals X damage to target opponent previously dealt damage by it, where X is the number of infection counters on it. 1/1 |
| Cyclopean Tomb | 4 | Artifact | {2}, {T}: Put a mire counter on target non-Swamp land. That land is a Swamp for as long as it has a mire counter on it. Activate only during your upkeep. When Cyclopean Tomb is put into a graveyard from the battlefield, at the beginning of each of your upkeeps for the rest of the game, remove all mire counters from a land that a mire counter was put onto with Cyclopean Tomb but that a mire counter has not been removed from with Cyclopean Tomb. |
| Take Up the Shield | 1W | Instant | Put a +1/+1 counter on target creature. It gains lifelink and indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.) |
| Backup Agent | 1W | Creature — Human Citizen | When Backup Agent enters the battlefield, put a +1/+1 counter on target creature. 1/1 |
| Hunting Moa | 2G | Creature — Bird Beast | Echo {2}{G} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.) When Hunting Moa enters the battlefield or dies, put a +1/+1 counter on target creature. 3/2 |
| Demonic Hordes | 3BBB | Creature — Demon | {T}: Destroy target land. At the beginning of your upkeep, unless you pay {B}{B}{B}, tap Demonic Hordes and sacrifice a land of an opponent's choice. 5/5 |
| Black Sun's Zenith | XBB | Sorcery | Put X -1/-1 counters on each creature. Shuffle Black Sun's Zenith into its owner's library. |
| Serpent's Soul-Jar | 2B | Artifact | Whenever an Elf you control dies, exile it. {T}, Pay 2 life: Until end of turn, you may cast a creature spell from among cards exiled with Serpent's Soul-Jar. |