M:tG card similarity search
B · Instant
As an additional cost to cast this spell, sacrifice a creature. Add X mana in any combination of {B} and/or {R}, where X is the sacrificed creature's mana value.
| Name | Mana | Type | Text |
|---|---|---|---|
| Chandra's Embercat | 1R | Creature — Elemental Cat | {T}: Add {R}. Spend this mana only to cast an Elemental spell or a Chandra planeswalker spell. 2/2 |
| Keeper of Secrets | 5R | Creature — Demon | First strike, haste Symphony of Pain — Whenever you cast a spell from anywhere other than your hand, Keeper of Secrets deals damage equal to that spell's mana value to target opponent. 6/4 |
| Extinction Event | 3B | Sorcery | Choose odd or even. Exile each creature with mana value of the chosen quality. (Zero is even.) |
| Gruesome Menagerie | 3BB | Sorcery | Choose a creature card with mana value 1 in your graveyard, then do the same for creature cards with mana value 2 and 3. Return those cards to the battlefield. |
| Slobad, Iron Goblin | 2R | Legendary Creature — Phyrexian Goblin Artificer | {T}, Sacrifice an artifact: Add an amount of {R} equal to the sacrificed artifact's mana value. Spend this mana only to cast artifact spells or activate abilities of artifacts. 3/3 |
| Hoard-Smelter Dragon | 4RR | Creature — Dragon | Flying {3}{R}: Destroy target artifact. Hoard-Smelter Dragon gets +X/+0 until end of turn, where X is that artifact's mana value. 5/5 |
| Krosan Drover | 3G | Creature — Elf | Creature spells you cast with mana value 6 or greater cost {2} less to cast. 2/2 |
| Roalesk, Prime Specimen | 2GU | Legendary Creature — Human Mutant | Flying Whenever Roalesk, Prime Specimen or another permanent you control is turned face up, you may pay {X}. If you do, if X is 1 or more, conjure a duplicate of a random creature card with mana value X into your hand. Cloak it. It gains "{G/U}: Turn this creature face up" for as long as it remains face down. Disguise {G}{U} 4/5 |
| Derelor | 3B | Creature — Thrull | Black spells you cast cost {B} more to cast. 4/4 |
| Emrakul's Influence | 2GG | Enchantment | Whenever you cast an Eldrazi creature spell with mana value 7 or greater, draw two cards. |