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 |
|---|---|---|---|
| Coal Stoker | 3R | Creature — Elemental | When Coal Stoker enters the battlefield, if you cast it from your hand, add {R}{R}{R}. 3/3 |
| Fieldmist Borderpost | 1WU | Artifact | You may pay {1} and return a basic land you control to its owner's hand rather than pay this spell's mana cost. Fieldmist Borderpost enters the battlefield tapped. {T}: Add {W} or {U}. |
| Firewild Borderpost | 1RG | Artifact | You may pay {1} and return a basic land you control to its owner's hand rather than pay this spell's mana cost. Firewild Borderpost enters the battlefield tapped. {T}: Add {R} or {G}. |
| Mistvein Borderpost | 1UB | Artifact | You may pay {1} and return a basic land you control to its owner's hand rather than pay this spell's mana cost. Mistvein Borderpost enters the battlefield tapped. {T}: Add {U} or {B}. |
| Veinfire Borderpost | 1BR | Artifact | You may pay {1} and return a basic land you control to its owner's hand rather than pay this spell's mana cost. Veinfire Borderpost enters the battlefield tapped. {T}: Add {B} or {R}. |
| Wildfield Borderpost | 1GW | Artifact | You may pay {1} and return a basic land you control to its owner's hand rather than pay this spell's mana cost. Wildfield Borderpost enters the battlefield tapped. {T}: Add {G} or {W}. |
| Prahv | Plane — Ravnica | If you cast a spell this turn, you can't attack with creatures. If you attacked with creatures this turn, you can't cast spells. Whenever chaos ensues, you gain life equal to the number of cards in your hand. | |
| Apex Observatory | Artifact | Apex Observatory enters the battlefield tapped. As it enters, choose a card type shared among two exiled cards used to craft it. {T}: The next spell you cast this turn of the chosen type can be cast without paying its mana cost. | |
| Counterbalance | UU | Enchantment | Whenever an opponent casts a spell, you may reveal the top card of your library. If you do, counter that spell if it has the same mana value as the revealed card. |
| Eidolon of Rhetoric | 2W | Enchantment Creature — Spirit | Each player can't cast more than one spell each turn. 1/4 |