M:tG card similarity search
3UU · Enchantment
Whenever a player casts a spell, any other player may pay that spell's mana cost. If a player does, counter the spell. (Mana cost includes color.)
| Name | Mana | Type | Text |
|---|---|---|---|
| Hazoret's Undying Fury | 4RR | Sorcery | Shuffle your library, then exile the top four cards. You may cast any number of spells with mana value 5 or less from among them without paying their mana costs. Lands you control don't untap during your next untap step. |
| Alliance of Arms | W | Sorcery | Join forces — Starting with you, each player may pay any amount of mana. Each player creates X 1/1 white Soldier creature tokens, where X is the total amount of mana paid this way. |
| Mirrorwing Dragon | 3RR | Creature — Dragon | Flying Whenever a player casts an instant or sorcery spell that targets only Mirrorwing Dragon, that player copies that spell for each other creature they control that the spell could target. Each copy targets a different one of those creatures. 4/5 |
| Hellcarver Demon | 3BBB | Creature — Demon | Flying Whenever Hellcarver Demon deals combat damage to a player, sacrifice all other permanents you control and discard your hand. Exile the top six cards of your library. You may cast any number of spells from among cards exiled this way without paying their mana costs. 6/6 |
| Idol of Endurance | 2W | Artifact | When Idol of Endurance enters the battlefield, exile all creature cards with mana value 3 or less from your graveyard until Idol of Endurance leaves the battlefield. {1}{W}, {T}: Until end of turn, you may cast a creature spell from among cards exiled with Idol of Endurance without paying its mana cost. |
| Kessig Flamebreather | 1R | Creature — Human Shaman | Whenever you cast a noncreature spell, Kessig Flamebreather deals 1 damage to each opponent. 1/3 |
| Dragonlair Spider | 2RRGG | Creature — Spider | Reach Whenever an opponent casts a spell, create a 1/1 green Insect creature token. 5/6 |
| Guttural Response | R/G | Instant | Counter target blue instant spell. |
| Forgotten Ancient | 3G | Creature — Elemental | Whenever a player casts a spell, you may put a +1/+1 counter on Forgotten Ancient. At the beginning of your upkeep, you may move any number of +1/+1 counters from Forgotten Ancient onto other creatures. 0/3 |
| Stinging Lionfish | 1U | Enchantment Creature — Fish | Whenever you cast your first spell during each opponent's turn, you may tap or untap target nonland permanent. 2/1 |