M:tG card similarity search
4 · Legendary Artifact
{T}: Add one mana of any color. {T}: Add three mana of any one color. Activate only if you control three or more lands with the same name.
| Name | Mana | Type | Text |
|---|---|---|---|
| Mana Web | 3 | Artifact | Whenever a land an opponent controls is tapped for mana, tap all lands that player controls that could produce any type of mana that land could produce. |
| Necron Deathmark | 3BB | Artifact Creature — Necron | Flash Synaptic Disintegrator — When Necron Deathmark enters the battlefield, destroy up to one target creature and target player mills three cards. 5/3 |
| Bubbling Muck | B | Sorcery | Until end of turn, whenever a player taps a Swamp for mana, that player adds an additional {B}. |
| Rahilda, Wanted Cutthroat | 1R | Legendary Creature — Human Werewolf | First strike When Rahilda, Wanted Cutthroat deals combat damage to a player, exile a nonland card from their library at random. During any turn you attacked with a Wolf or Werewolf, you may cast that card and you may spend mana as though it were mana of any color to cast that spell. Daybound 2/2 |
| Channel | GG | Sorcery | Until end of turn, any time you could activate a mana ability, you may pay 1 life. If you do, add {C}. |
| Tolarian Academy | Legendary Land | {T}: Add {U} for each artifact you control. | |
| Stave Off | W | Instant | Target creature gains protection from the color of your choice until end of turn. |
| Agent of Raffine | U | Creature — Human Rogue | {2}, {T}: Choose target opponent. Conjure a duplicate of the top card of their library into your hand. It perpetually gains "You may spend mana as though it were mana of any color to cast this spell." Then they exile the top card of their library face down. 1/2 |
| Warden of Geometries | 4 | Creature — Eldrazi Drone | Vigilance {T}: Add {C}. ({C} represents colorless mana.) 2/3 |
| Author of Shadows | 4B | Creature — Shade Warlock | When Author of Shadows enters the battlefield, exile all opponents' graveyards. Choose a nonland card exiled this way. You may cast that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell. 3/3 |