M:tG card similarity search
1U · Creature — Siren
Flash Flying When Threnody Singer enters the battlefield, target creature an opponent controls gets -X/-0 until end of turn, where X is your devotion to blue. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.) 1/3
| Name | Mana | Type | Text |
|---|---|---|---|
| Make Obsolete | 2B | Instant | Creatures your opponents control get -1/-1 until end of turn. |
| Cleave Shadows | 1B | Sorcery — Adventure | Creatures your opponents control get -1/-1 until end of turn. (Then exile this card. You may cast the creature later from exile.) |
| Turn the Tide | 1U | Instant | Creatures your opponents control get -2/-0 until end of turn. |
| Loss | 2B | Instant | Creatures your opponents control get -1/-1 until end of turn. Fuse (You may cast one or both halves of this card from your hand.) |
| Merfolk Trickster | UU | Creature — Merfolk Wizard | Flash When Merfolk Trickster enters the battlefield, tap target creature an opponent controls. It loses all abilities until end of turn. 2/2 |
| The Black Breath | 2B | Sorcery | Creatures your opponents control get -1/-1 until end of turn. The Ring tempts you. |
| Dwarven Lightsmith | 5W | Creature — Dwarf Cleric | Assist (Another player can pay up to {5} of this spell's cost.) When Dwarven Lightsmith enters the battlefield, creatures your team controls get +1/+1 until end of turn. 3/4 |
| Break Open | 1R | Instant | Turn target face-down creature an opponent controls face up. |
| Sarah's Wings | W | Tribal Instant — Angel | Target creature or player gains flying until end of turn. (Players with flying can't be dealt damage by creatures without flying.) |
| Patron of the Vein | 4BB | Creature — Vampire Shaman | Flying When Patron of the Vein enters the battlefield, destroy target creature an opponent controls. Whenever a creature an opponent controls dies, exile it and put a +1/+1 counter on each Vampire you control. 4/4 |