M:tG card similarity search
3 · Artifact
As Heraldic Banner enters the battlefield, choose a color. Creatures you control of the chosen color get +1/+0. {T}: Add one mana of the chosen color.
| Name | Mana | Type | Text |
|---|---|---|---|
| Toxicrene | 3G | Creature — Tyranid | Reach, deathtouch Hypertoxic Miasma — All lands have "{T}: Add one mana of any color" and lose all other abilities. 2/4 |
| Quicksilver Elemental | 3UU | Creature — Elemental | {U}: Quicksilver Elemental gains all activated abilities of target creature until end of turn. (If any of the abilities use that creature's name, use this creature's name instead.) You may spend blue mana as though it were mana of any color to pay the activation costs of Quicksilver Elemental's abilities. 3/4 |
| Vesuvan Mist | 1U | Instant | Kicker {1}{B} Return target nontoken, nonland permanent to its owner's hand. If this spell was kicked, conjure a duplicate of that card into your hand. It perpetually gains "You may spend mana as though it were mana of any color to cast this spell." |
| Extinction Event | 3B | Sorcery | Choose odd or even. Exile each creature with mana value of the chosen quality. (Zero is even.) |
| Urza's Incubator | 3 | Artifact | As Urza's Incubator enters the battlefield, choose a creature type. Creature spells of the chosen type cost {2} less to cast. |
| Karoo Meerkat | 1G | Creature — Mongoose | Protection from blue 2/1 |
| Predatory Sludge | 2B | Creature — Ooze | Menace As Predatory Sludge enters the battlefield, choose a permanent you don't control. When the chosen permanent is put into a graveyard from the battlefield, conjure a card named Predatory Sludge into your hand. 3/3 |
| Roilmage's Trick | 3U | Instant | Converge — Creatures your opponents control get -X/-0 until end of turn, where X is the number of colors of mana spent to cast this spell. Draw a card. |
| Doom Cannon | 6 | Artifact | As Doom Cannon enters the battlefield, choose a creature type. {3}, {T}, Sacrifice a creature of the chosen type: Doom Cannon deals 3 damage to any target. |
| Unified Front | 3W | Sorcery | Converge — Create a 1/1 white Kor Ally creature token for each color of mana spent to cast this spell. |