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 |
|---|---|---|---|
| Illness in the Ranks | B | Enchantment | Creature tokens get -1/-1. |
| Virulent Plague | 2B | Enchantment | Creature tokens get -2/-2. |
| Flame Burst | 1R | Instant | Flame Burst deals X damage to any target, where X is 2 plus the number of cards named Flame Burst in all graveyards. |
| Kindle | 1R | Instant | Kindle deals X damage to any target, where X is 2 plus the number of cards named Kindle in all graveyards. |
| Nightscape Apprentice | B | Creature — Zombie Wizard | {U}, {T}: Put target creature you control on top of its owner's library. {R}, {T}: Target creature gains first strike until end of turn. 1/1 |
| Errant Minion | 2U | Enchantment — Aura | Enchant creature At the beginning of the upkeep of enchanted creature's controller, that player may pay any amount of mana. Errant Minion deals 2 damage to that player. Prevent X of that damage, where X is the amount of mana that player paid this way. |
| Sundial of the Infinite | 2 | Artifact | {1}, {T}: End the turn. Activate only during your turn. (Exile all spells and abilities from the stack. Discard down to your maximum hand size. Damage wears off, and "this turn" and "until end of turn" effects end.) |
| Mind Shatter | XBB | Sorcery | Target player discards X cards at random. |
| Mind Twist | XB | Sorcery | Target player discards X cards at random. |
| Code of Constraint | 2U | Instant | Target creature gets -4/-0 until end of turn. Draw a card. Addendum — If you cast this spell during your main phase, tap that creature and it doesn't untap during its controller's next untap step. |