M:tG card similarity search
5R · Enchantment
Whenever you cast a spell from your hand, reveal the top X cards of your library, where X is that spell's mana value. You may cast a spell with mana value X or less from among cards revealed this way without paying its mana cost. Put the rest on the bottom of your library in a random order.
| Name | Mana | Type | Text |
|---|---|---|---|
| Ancient Cornucopia | 2G | Artifact | Whenever you cast a spell that's one or more colors, you may gain 1 life for each of that spell's colors. Do this only once each turn. {T}: Add one mana of any color. |
| Sydri, Galvanic Genius | WUB | Legendary Creature — Human Artificer | {U}: Target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value until end of turn. {W}{B}: Target artifact creature gains deathtouch and lifelink until end of turn. 2/2 |
| Mirari | 5 | Legendary Artifact | Whenever you cast an instant or sorcery spell, you may pay {3}. If you do, copy that spell. You may choose new targets for the copy. |
| Izzet Steam Maze | Plane — Ravnica | Whenever a player casts an instant or sorcery spell, that player copies it. The player may choose new targets for the copy. Whenever chaos ensues, instant and sorcery spells you cast this turn cost {3} less to cast. | |
| Foundry Helix | 1RW | Instant | As an additional cost to cast this spell, sacrifice a permanent. Foundry Helix deals 4 damage to any target. If the sacrificed permanent was an artifact, you gain 4 life. |
| Reality Shift | 1U | Instant | Exile target creature. Its controller manifests the top card of their library. (That player puts the top card of their library onto the battlefield face down as a 2/2 creature. If it's a creature card, it can be turned face up any time for its mana cost.) |
| Avatar of Might | 6GG | Creature — Avatar | If an opponent controls at least four more creatures than you, this spell costs {6} less to cast. Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.) 8/8 |
| Octavia, Living Thesis | 8UU | Legendary Creature — Elemental Octopus | This spell costs {8} less to cast if you have eight or more instant and/or sorcery cards in your graveyard. Ward {8} Magecraft — Whenever you cast or copy an instant or sorcery spell, target creature has base power and toughness 8/8 until end of turn. 8/8 |
| Virtue of Courage | 3RR | Enchantment | Whenever a source you control deals noncombat damage to an opponent, you may exile that many cards from the top of your library. You may play those cards this turn. |
| Ghoultree | 7G | Creature — Zombie Treefolk | This spell costs {1} less to cast for each creature card in your graveyard. 10/10 |