M:tG card similarity search
B · Sorcery
Until end of turn, whenever a player taps a Swamp for mana, that player adds an additional {B}.
| Name | Mana | Type | Text |
|---|---|---|---|
| Troll-Horn Cameo | 3 | Artifact | {T}: Add {R} or {G}. |
| Ur-Golem's Eye | 4 | Artifact | {T}: Add {C}{C}. |
| Vault of Whispers | Artifact Land | {T}: Add {B}. | |
| Viridescent Bog | Land | {1}, {T}: Add {B}{G}. | |
| Wastes | Basic Land | {T}: Add {C}. | |
| Seton, Krosan Protector | GGG | Legendary Creature — Centaur Druid | Tap an untapped Druid you control: Add {G}. 2/2 |
| Ballroom | Land | Ballroom enters the battlefield tapped. {T}: Add {W} or {B}. {4}, {T}: Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") | |
| Billiard Room | Land | Billiard Room enters the battlefield tapped. {T}: Add {B} or {R}. {4}, {T}: Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") | |
| Conservatory | Land | Conservatory enters the battlefield tapped. {T}: Add {G} or {W}. {4}, {T}: Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") | |
| Dining Room | Land | Dining Room enters the battlefield tapped. {T}: Add {R} or {G}. {4}, {T}: Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") |