M:tG card similarity search
4BBB · Creature — Elemental
Chroma — Umbra Stalker's power and toughness are each equal to the number of black mana symbols in the mana costs of cards in your graveyard. */*
| Name | Mana | Type | Text |
|---|---|---|---|
| Cave-In | 3RR | Sorcery | You may exile a red card from your hand rather than pay this spell's mana cost. Cave-In deals 2 damage to each creature and each player. |
| Omnath, Locus of All | WUB/PRG | Legendary Creature — Phyrexian Elemental | If you would lose unspent mana, that mana becomes black instead. At the beginning of your precombat main phase, look at the top card of your library. You may reveal that card if it has three or more colored mana symbols in its mana cost. If you do, add three mana in any combination of its colors and put it into your hand. If you don't reveal it, put it into your hand. 4/4 |
| Greven, Predator Captain | 3BR | Legendary Creature — Phyrexian Human Warrior | Menace Greven, Predator Captain gets +X/+0, where X is the amount of life you've lost this turn. Whenever Greven attacks, you may sacrifice another creature. If you do, you draw cards equal to that creature's power and you lose life equal to that creature's toughness. 5/5 |
| Heartstone | 3 | Artifact | Activated abilities of creatures cost {1} less to activate. This effect can't reduce the mana in that cost to less than one mana. |
| Abzan Beastmaster | 2G | Creature — Dog Shaman | At the beginning of your upkeep, draw a card if you control the creature with the greatest toughness or tied for the greatest toughness. 2/1 |
| Diamond Valley | Land | {T}, Sacrifice a creature: You gain life equal to the sacrificed creature's toughness. | |
| Knowledge Exploitation | 5UU | Tribal Sorcery — Rogue | Prowl {3}{U} (You may cast this for its prowl cost if you dealt combat damage to a player this turn with a Rogue.) Search target opponent's library for an instant or sorcery card. You may cast that card without paying its mana cost. Then that player shuffles. |
| Sins of the Past | 4BB | Sorcery | Until end of turn, you may cast target instant or sorcery card from your graveyard without paying its mana cost. If that spell would be put into your graveyard, exile it instead. Exile Sins of the Past. |
| Master of Predicaments | 3UU | Creature — Sphinx | Flying Whenever Master of Predicaments deals combat damage to a player, choose a card in your hand. That player guesses whether the card's mana value is greater than 4. If the player guessed wrong, you may cast the card without paying its mana cost. 4/4 |
| Yotian Courier | UR | Creature — Human Artificer | Flying Whenever Yotian Courier attacks, choose one that wasn't chosen during your last combat — • Create a tapped Powerstone token. • Seek a nonland card with mana value equal to the number of Powerstones you control. 2/2 |