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 | 
|---|---|---|---|
| Grand Warlord Radha | 2RG | Legendary Creature — Elf Warrior | Haste Whenever one or more creatures you control attack, add that much mana in any combination of {R} and/or {G}. Until end of turn, you don't lose this mana as steps and phases end. 3/4 | 
| Blinkmoth Urn | 5 | Artifact | At the beginning of each player's precombat main phase, if Blinkmoth Urn is untapped, that player adds {C} for each artifact they control. | 
| Sakiko, Mother of Summer | 4GG | Legendary Creature — Snake Shaman | Whenever a creature you control deals combat damage to a player, add that much {G}. Until end of turn, you don't lose this mana as steps and phases end. 3/3 | 
| Benthic Explorers | 3U | Creature — Merfolk Scout | {T}, Untap a tapped land an opponent controls: Add one mana of any type that land could produce. 2/4 | 
| Cascading Cataracts | Land | Indestructible {T}: Add {C}. {5}, {T}: Add five mana in any combination of colors. | |
| Bountiful Promenade | Land | Bountiful Promenade enters the battlefield tapped unless you have two or more opponents. {T}: Add {G} or {W}. | |
| Luxury Suite | Land | Luxury Suite enters the battlefield tapped unless you have two or more opponents. {T}: Add {B} or {R}. | |
| Morphic Pool | Land | Morphic Pool enters the battlefield tapped unless you have two or more opponents. {T}: Add {U} or {B}. | |
| Rejuvenating Springs | Land | Rejuvenating Springs enters the battlefield tapped unless you have two or more opponents. {T}: Add {G} or {U}. | |
| Sea of Clouds | Land | Sea of Clouds enters the battlefield tapped unless you have two or more opponents. {T}: Add {W} or {U}. |