M:tG card similarity search
3 · Legendary Artifact
Whenever you cast a multicolored spell, create a tapped Powerstone token. (It's an artifact with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.") {X}{X}{X}, {T}: Look at the top X cards of your library. Put up to two of them into your hand and the rest on the bottom of your library in a random order.
| Name | Mana | Type | Text |
|---|---|---|---|
| Prossh, Skyraider of Kher | 3BRG | Legendary Creature — Dragon | When you cast this spell, create X 0/1 red Kobold creature tokens named Kobolds of Kher Keep, where X is the amount of mana spent to cast it. Flying Sacrifice another creature: Prossh, Skyraider of Kher gets +1/+0 until end of turn. 5/5 |
| Curse of Vengeance | B | Enchantment — Aura Curse | Enchant player Whenever enchanted player casts a spell, put a spite counter on Curse of Vengeance. When enchanted player loses the game, you gain X life and draw X cards, where X is the number of spite counters on Curse of Vengeance. |
| Lay Bare | 2UU | Instant | Counter target spell. Look at its controller's hand. |
| Nivix, Aerie of the Firemind | Land | {T}: Add {C}. {2}{U}{R}, {T}: Exile the top card of your library. Until your next turn, you may cast it if it's an instant or sorcery spell. | |
| Grimoire Thief | UU | Creature — Merfolk Rogue | Whenever Grimoire Thief becomes tapped, exile the top three cards of target opponent's library face down. You may look at cards exiled with Grimoire Thief. {U}, Sacrifice Grimoire Thief: Turn all cards exiled with Grimoire Thief face up. Counter all spells with those names. 2/2 |
| Bubble Up | 2U | Sorcery — Adventure | Put target instant or sorcery card from your graveyard on top of your library. (Then exile this card. You may cast the creature later from exile.) |
| Day's Undoing | 2U | Sorcery | Each player shuffles their hand and graveyard into their library, then draws seven cards. If it's your turn, end the turn. (Exile all spells and abilities from the stack, including this card. Discard down to your maximum hand size. Damage wears off, and "this turn" and "until end of turn" effects end.) |
| Leaf-Crowned Elder | 2GG | Creature — Treefolk Shaman | Kinship — At the beginning of your upkeep, you may look at the top card of your library. If it shares a creature type with Leaf-Crowned Elder, you may reveal it. If you do, you may play that card without paying its mana cost. 3/5 |
| Audacious Swap | 3R | Instant | Casualty 2 (As you cast this spell, you may sacrifice a creature with power 2 or greater. When you do, copy this spell and you may choose a new target for the copy.) The owner of target nonenchantment permanent shuffles it into their library, then exiles the top card of their library. If it's a land card, they put it onto the battlefield. Otherwise, they may cast it without paying its mana cost. |
| Arvinox, the Mind Flail | 4BBB | Legendary Enchantment Creature — Horror | Arvinox, the Mind Flail isn't a creature unless you control three or more permanents you don't own. At the beginning of your end step, exile the bottom card of each opponent's library face down. For as long as those cards remain exiled, you may look at them, you may cast permanent spells from among them, and you may spend mana as though it were mana of any color to cast those spells. 9/9 |