M:tG card similarity search
| Name | Mana | Type | Text |
|---|---|---|---|
| Scalding Viper | 1R | Creature — Elemental Snake | Whenever an opponent casts a spell with mana value 3 or less, Scalding Viper deals 1 damage to that player. 2/1 |
| Wavebreak Hippocamp | 2U | Enchantment Creature — Horse Fish | Whenever you cast your first spell during each opponent's turn, draw a card. 2/2 |
| Harvest Mage | G | Creature — Human Spellshaper | {G}, {T}, Discard a card: Until end of turn, if you tap a land for mana, it produces one mana of a color of your choice instead of any other type and amount. 1/1 |
| Labyrinth Champion | 3R | Creature — Human Warrior | Heroic — Whenever you cast a spell that targets Labyrinth Champion, Labyrinth Champion deals 2 damage to any target. 2/2 |
| Aetherflux Reservoir | 4 | Artifact | Whenever you cast a spell, you gain 1 life for each spell you've cast this turn. Pay 50 life: Aetherflux Reservoir deals 50 damage to any target. |
| Epistolary Librarian | 2WU | Creature — Astartes Wizard | Veil of Time — Whenever Epistolary Librarian attacks, you may cast a spell with mana value X or less from your hand without paying its mana cost, where X is the number of attacking creatures. 3/4 |
| Krallenhorde Howler | Creature — Werewolf | Creature spells you cast cost {1} less to cast. At the beginning of each upkeep, if a player cast two or more spells last turn, transform Krallenhorde Howler. 3/3 | |
| Student of Ojutai | 3W | Creature — Human Monk | Whenever you cast a noncreature spell, you gain 2 life. 2/4 |
| Heartless Conscription | 6BB | Sorcery | Exile all creatures. For each card exiled this way, you may play that card for as long as it remains exiled, and mana of any type can be spent to cast that spell. Exile Heartless Conscription. |
| Ruin Processor | 7 | Creature — Eldrazi Processor | When you cast this spell, you may put a card an opponent owns from exile into that player's graveyard. If you do, you gain 5 life. 7/8 |