M:tG card similarity search
2 · Artifact
Whenever a player casts a black spell, you may pay {3}. If you do, untap target permanent.
| Name | Mana | Type | Text |
|---|---|---|---|
| Mystic Remora | U | Enchantment | Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) Whenever an opponent casts a noncreature spell, you may draw a card unless that player pays {4}. |
| Unifying Theory | 1U | Enchantment | Whenever a player casts a spell, that player may pay {2}. If the player does, they draw a card. |
| Crystal Rod | 1 | Artifact | Whenever a player casts a blue spell, you may pay {1}. If you do, you gain 1 life. |
| Nether Void | 3B | World Enchantment | Whenever a player casts a spell, counter it unless that player pays {3}. |
| Paradox Engine | 5 | Legendary Artifact | Whenever you cast a spell, untap all nonland permanents you control. |
| Merrow Bonegnawer | B | Creature — Merfolk Rogue | {T}: Target player exiles a card from their graveyard. Whenever you cast a black spell, you may untap Merrow Bonegnawer. 1/1 |
| Drowner Initiate | U | Creature — Merfolk Wizard | Whenever a player casts a blue spell, you may pay {1}. If you do, target player mills two cards. 1/1 |
| Ice Cave | 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.) |
| Defiler of Flesh | 2BB | Creature — Phyrexian Horror | Menace As an additional cost to cast black permanent spells, you may pay 2 life. Those spells cost {B} less to cast if you paid life this way. This effect reduces only the amount of black mana you pay. Whenever you cast a black permanent spell, target creature you control gets +1/+1 and gains menace until end of turn. 4/4 |
| Iron Star | 1 | Artifact | Whenever a player casts a red spell, you may pay {1}. If you do, you gain 1 life. |