M:tG card similarity search
2 · Artifact
Whenever a player casts a red 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}. |
| Bog-Strider Ash | 3G | Creature — Treefolk Shaman | Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.) Whenever a player casts a Goblin spell, you may pay {G}. If you do, you gain 2 life. 2/4 |
| 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. |
| Intimidator Initiate | R | Creature — Goblin Shaman | Whenever a player casts a red spell, you may pay {1}. If you do, target creature can't block this turn. 1/1 |
| Lightning Cloud | 3R | Enchantment | Whenever a player casts a red spell, you may pay {R}. If you do, Lightning Cloud deals 1 damage to any target. |
| Nether Void | 3B | World Enchantment | Whenever a player casts a spell, counter it unless that player pays {3}. |
| Merrow Reejerey | 2U | Creature — Merfolk Soldier | Other Merfolk creatures you control get +1/+1. Whenever you cast a Merfolk spell, you may tap or untap target permanent. 2/2 |
| 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.) |
| Paradox Engine | 5 | Legendary Artifact | Whenever you cast a spell, untap all nonland permanents you control. |