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 |
|---|---|---|---|
| Setessan Oathsworn | 1GG | Creature — Satyr Warrior | Heroic — Whenever you cast a spell that targets Setessan Oathsworn, put two +1/+1 counters on Setessan Oathsworn. 1/1 |
| Valiant Changeling | 5WW | Creature — Shapeshifter | This spell costs {1} less to cast for each creature type among creatures you control. This effect can't reduce the amount of mana this spell costs by more than {5}. Changeling (This card is every creature type.) Double strike 3/3 |
| Apex Observatory | Artifact | Apex Observatory enters the battlefield tapped. As it enters, choose a card type shared among two exiled cards used to craft it. {T}: The next spell you cast this turn of the chosen type can be cast without paying its mana cost. | |
| Deeproot Champion | 1G | Creature — Merfolk Shaman | Whenever you cast a noncreature spell, put a +1/+1 counter on Deeproot Champion. 1/1 |
| Pheres-Band Thunderhoof | 4G | Creature — Centaur Warrior | Heroic — Whenever you cast a spell that targets Pheres-Band Thunderhoof, put two +1/+1 counters on Pheres-Band Thunderhoof. 3/4 |
| Myrsmith | 1W | Creature — Human Artificer | Whenever you cast an artifact spell, you may pay {1}. If you do, create a 1/1 colorless Myr artifact creature token. 2/1 |
| Malcolm, the Eyes | UR | Legendary Creature — Siren Pirate | Flying, haste Whenever you cast your second spell each turn, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") 2/2 |
| Cloudhoof Kirin | 3UU | Legendary Creature — Kirin Spirit | Flying Whenever you cast a Spirit or Arcane spell, you may have target player mill X cards, where X is that spell's mana value. 4/4 |
| Cathar's Companion | 2W | Creature — Dog | Whenever you cast a noncreature spell, Cathar's Companion gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.) 3/1 |
| Zaffai, Thunder Conductor | 2UR | Legendary Creature — Human Shaman | Magecraft — Whenever you cast or copy an instant or sorcery spell, scry 1. If that spell's mana value is 5 or greater, create a 4/4 blue and red Elemental creature token. If that spell's mana value is 10 or greater, Zaffai, Thunder Conductor deals 10 damage to an opponent chosen at random. 1/4 |