M:tG card similarity search
UB · Legendary Creature — Human Spy
As long as X is in X's owner's opponent's hand, X's owner may cast X and activate X's abilities. That opponent can't cast X and plays with their hand revealed. {U}{B}, {T}: Put X into target opponent's hand. {3}{U}{B}: You may play a land or cast a spell from the hand X is in. If you cast a spell this way, you cast it without paying its mana cost. 2/2
| Name | Mana | Type | Text |
|---|---|---|---|
| Take It Back | 2U | Instant — Adventure | Return target spell to its owner's hand. (Then exile this card. You may cast the creature later from exile.) |
| Throne of Bone | 1 | Artifact | Whenever a player casts a black spell, you may pay {1}. If you do, you gain 1 life. |
| Opal Caryatid | W | Enchantment | When an opponent casts a creature spell, if Opal Caryatid is an enchantment, Opal Caryatid becomes a 2/2 Soldier creature. |
| Foul Familiar | 2B | Creature — Spirit | Foul Familiar can't block. {B}, Pay 1 life: Return Foul Familiar to its owner's hand. 3/1 |
| B-I-N-G-O | 1G | Creature — Dog | Trample Whenever a player casts a spell, put a chip counter on its mana value. B-I-N-G-O gets +9/+9 for each set of three numbers in a row with chip counters on them. 1/1 |
| Kasmina, Enigma Sage | 1GU | Legendary Planeswalker — Kasmina | Each other planeswalker you control has the loyalty abilities of Kasmina, Enigma Sage. [+2]: Scry 1. [−X]: Create a 0/0 green and blue Fractal creature token. Put X +1/+1 counters on it. [−8]: Search your library for an instant or sorcery card that shares a color with this planeswalker, exile that card, then shuffle. You may cast that card without paying its mana cost. Loyalty 2 |
| Specter's Shriek | B | Sorcery | Target opponent reveals their hand. You may choose a nonland card from it. If you do, that player exiles that card. If a nonblack card is exiled this way, exile a card from your hand. |
| Momir Vig, Simic Visionary | 3GU | Legendary Creature — Elf Wizard | Whenever you cast a green creature spell, you may search your library for a creature card, reveal it, then shuffle and put that card on top. Whenever you cast a blue creature spell, reveal the top card of your library. If it's a creature card, put that card into your hand. 2/2 |
| Belligerent Regisaur | Creature — Dinosaur | Trample Whenever you cast a spell, Belligerent Regisaur gains indestructible until end of turn. 4/3 | |
| Opal Gargoyle | 1W | Enchantment | When an opponent casts a creature spell, if Opal Gargoyle is an enchantment, Opal Gargoyle becomes a 2/2 Gargoyle creature with flying. |