M:tG card similarity search
UUUU · Enchantment
Whenever an opponent casts a creature spell that doesn't share a color with a creature you control, counter that spell unless that player pays {X}, where X is its mana value.
| Name | Mana | Type | Text |
|---|---|---|---|
| Cunning Breezedancer | 4WU | Creature — Dragon | Flying Whenever you cast a noncreature spell, Cunning Breezedancer gets +2/+2 until end of turn. 4/4 |
| Irencrag Feat | 1RRR | Sorcery | Add seven {R}. You can cast only one more spell this turn. |
| Progenitor's Icon | 3 | Artifact | As Progenitor's Icon enters the battlefield, choose a creature type. {T}: Add one mana of any color. {T}: The next spell of the chosen type you cast this turn can be cast as though it had flash. |
| Whir of Invention | XUUU | Instant | Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle. |
| Opal Acrolith | 2W | Enchantment | Whenever an opponent casts a creature spell, if Opal Acrolith is an enchantment, Opal Acrolith becomes a 2/4 Soldier creature. {0}: Opal Acrolith becomes an enchantment. |
| Lobber Crew | 2R | Creature — Goblin Warrior | Defender {T}: Lobber Crew deals 1 damage to each opponent. Whenever you cast a multicolored spell, untap Lobber Crew. 0/4 |
| Better Offer | XU | Sorcery | Put a random creature card with mana value X or less from target opponent's library onto the battlefield under your control. It perpetually has base power and toughness X/X and perpetually gains ward {1}. |
| Covetous Urge | U/BU/BU/BU/B | Sorcery | Target opponent reveals their hand. You choose a nonland card from that player's graveyard or hand and exile it. You may cast that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell. |
| Psychic Intrusion | 3UB | Sorcery | Target opponent reveals their hand. You choose a nonland card from that player's graveyard or hand and exile it. You may cast that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell. |
| Viconia, Disciple of Violence | 1BR | Legendary Creature — Elf Cleric | When this creature specializes, conjure a duplicate of target creature card exiled with this creature into your hand. The duplicate perpetually gets +1/+0 and gains haste and "You may spend mana as though it were mana of any color to cast this spell." {1}: Exile target card from a graveyard. 3/4 |