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 |
|---|---|---|---|
| Malachite Talisman | 2 | Artifact | Whenever a player casts a green spell, you may pay {3}. If you do, untap target permanent. |
| Henge Walker | 3 | Artifact Creature — Golem | Adamant — If at least three mana of the same color was spent to cast this spell, Henge Walker enters the battlefield with a +1/+1 counter on it. 2/2 |
| Krosan Warchief | 2G | Creature — Beast | Beast spells you cast cost {1} less to cast. {1}{G}: Regenerate target Beast. 2/2 |
| Crashing Tide | 2U | Sorcery | This spell has flash as long as you control a Merfolk. Return target creature to its owner's hand. Draw a card. |
| Force of Vigor | 2GG | Instant | If it's not your turn, you may exile a green card from your hand rather than pay this spell's mana cost. Destroy up to two target artifacts and/or enchantments. |
| Hand of Emrakul | 9 | Creature — Eldrazi | You may sacrifice four Eldrazi Spawn rather than pay this spell's mana cost. Annihilator 1 (Whenever this creature attacks, defending player sacrifices a permanent.) 7/7 |
| Painful Memories | 1B | Sorcery | Look at target opponent's hand and choose a card from it. Put that card on top of that player's library. |
| Flash | 1U | Instant | You may put a creature card from your hand onto the battlefield. If you do, sacrifice it unless you pay its mana cost reduced by up to {2}. |
| March of Otherworldly Light | XW | Instant | As an additional cost to cast this spell, you may exile any number of white cards from your hand. This spell costs {2} less to cast for each card exiled this way. Exile target artifact, creature, or enchantment with mana value X or less. |
| Cerebral Eruption | 2RR | Sorcery | Target opponent reveals the top card of their library. Cerebral Eruption deals damage equal to the revealed card's mana value to that player and each creature that player controls. If a land card is revealed this way, return Cerebral Eruption to its owner's hand. |