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 |
|---|---|---|---|
| Obscuring Aether | G | Enchantment | Face-down creature spells you cast cost {1} less to cast. {1}{G}: Turn Obscuring Aether face down. (It becomes a 2/2 creature.) |
| Aether Burst | 1U | Instant | Return up to X target creatures to their owners' hands, where X is one plus the number of cards named Aether Burst in all graveyards as you cast this spell. |
| Horde of Notions | WUBRG | Legendary Creature — Elemental | Vigilance, trample, haste {W}{U}{B}{R}{G}: You may play target Elemental card from your graveyard without paying its mana cost. 5/5 |
| Cataclysmic Prospecting | XRR | Sorcery | Cataclysmic Prospecting deals X damage to each creature. For each mana from a Desert spent to cast this spell, create a tapped Treasure token. |
| Akoum | Plane — Zendikar | Players may cast enchantment spells as though they had flash. Whenever chaos ensues, destroy target creature that isn't enchanted. | |
| Sunder | 3UU | Instant | Return all lands to their owners' hands. |
| Force of Negation | 1UU | Instant | If it's not your turn, you may exile a blue card from your hand rather than pay this spell's mana cost. Counter target noncreature spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard. |
| Unpredictable Cyclone | 3RR | Enchantment | If a cycling ability of another nonland card would cause you to draw a card, instead exile cards from the top of your library until you exile a card that shares a card type with the cycled card. You may cast that card without paying its mana cost. Then put the exiled cards that weren't cast this way on the bottom of your library in a random order. Cycling {2} ({2}, Discard this card: Draw a card.) |
| Aether Barrier | 2U | Enchantment | Whenever a player casts a creature spell, that player sacrifices a permanent unless they pay {1}. |
| Devastating Mastery | 2WWWW | Sorcery | You may pay {2}{W}{W} rather than pay this spell's mana cost. If the {2}{W}{W} cost was paid, an opponent chooses up to two nonland permanents they control and returns them to their owner's hand. Destroy all nonland permanents. |