M:tG card similarity search
5B · Creature — Nightmare
Mutate {4}{B} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.) Whenever this creature mutates, each opponent sacrifices a creature. 4/6
| Name | Mana | Type | Text |
|---|---|---|---|
| Lightning-Core Excavator | 1 | Artifact Creature — Golem | {5}, {T}, Sacrifice Lightning-Core Excavator: It deals 3 damage to any target. 0/3 |
| Hungry Hungry Heifer | 2G | Creature — Cow | At the beginning of your upkeep, you may remove a counter from a permanent you control. If you don't, sacrifice Hungry Hungry Heifer. 3/3 |
| Ronom Serpent | 5U | Snow Creature — Serpent | Ronom Serpent can't attack unless defending player controls a snow land. When you control no snow lands, sacrifice Ronom Serpent. 5/6 |
| Powerstone Fracture | 1B | Sorcery | As an additional cost to cast this spell, sacrifice an artifact or creature. Destroy target creature or planeswalker. |
| Death's Oasis | WBG | Enchantment | Whenever a nontoken creature you control dies, mill two cards. Then return a creature card with lesser mana value than the creature that died from your graveyard to your hand. {1}, Sacrifice Death's Oasis: You gain life equal to the highest mana value among creatures you control. |
| Tenuous Truce | 1W | Enchantment — Aura | Enchant opponent At the beginning of enchanted opponent's end step, you and that player each draw a card. When you attack enchanted opponent or a planeswalker they control or when they attack you or a planeswalker you control, sacrifice Tenuous Truce. |
| Riddlekeeper | 2U | Creature — Homunculus | Whenever a creature attacks you or a planeswalker you control, that creature's controller mills two cards. 1/4 |
| Minotaur Explorer | 1R | Creature — Minotaur Scout | When Minotaur Explorer enters the battlefield, sacrifice it unless you discard a card at random. 3/3 |
| Spiteful Banditry | XRR | Enchantment | When Spiteful Banditry enters the battlefield, it deals X damage to each creature. Whenever one or more creatures your opponents control die, you create a Treasure token. This ability triggers only once each turn. |
| Starscream, Seeker Leader | Legendary Artifact — Vehicle | Living metal (As long as it's your turn, this Vehicle is also a creature.) Flying, menace, haste Whenever Starscream deals combat damage to a player, if there is no monarch, that player becomes the monarch. Whenever you become the monarch, convert Starscream. 2/3 |