M:tG card similarity search
B · Instant
As an additional cost to cast this spell, sacrifice a creature. Add an amount of {B} equal to the sacrificed creature's mana value.
| Name | Mana | Type | Text |
|---|---|---|---|
| Silence | W | Instant | Your opponents can't cast spells this turn. |
| Secret Base | Land | {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a spell that shares a watermark with Secret Base. | |
| Devouring Greed | 2BB | Sorcery — Arcane | As an additional cost to cast this spell, you may sacrifice any number of Spirits. Target player loses 2 life plus 2 life for each Spirit sacrificed this way. You gain that much life. |
| Call a Surprise Witness | 1W | Sorcery | Return target creature card with mana value 3 or less from your graveyard to the battlefield. Put a flying counter on it. It's a Spirit in addition to its other types. |
| Reject Imperfection | 1UU | Instant | Counter target spell. If that spell's mana value was 3 or less, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.) |
| Void | 3BR | Sorcery | Choose a number. Destroy all artifacts and creatures with mana value equal to that number. Then target player reveals their hand and discards all nonland cards with mana value equal to the number. |
| Guildmages' Forum | Land | {T}: Add {C}. {1}, {T}: Add one mana of any color. If that mana is spent on a multicolored creature spell, that creature enters the battlefield with an additional +1/+1 counter on it. | |
| Trinisphere | 3 | Artifact | As long as Trinisphere is untapped, each spell that would cost less than three mana to cast costs three mana to cast. (Additional mana in the cost may be paid with any color of mana or colorless mana. For example, a spell that would cost {1}{B} to cast costs {2}{B} to cast instead.) |
| Slobad, Iron Goblin | 2R | Legendary Creature — Phyrexian Goblin Artificer | {T}, Sacrifice an artifact: Add an amount of {R} equal to the sacrificed artifact's mana value. Spend this mana only to cast artifact spells or activate abilities of artifacts. 3/3 |
| Tin Street Gossip | 2RG | Creature — Viashino Advisor | Vigilance {T}: Add {R}{G}. Spend this mana only to cast face-down spells or to turn creatures face up. 4/4 |