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 |
|---|---|---|---|
| Malicious Advice | XUB | Instant | Tap X target artifacts, creatures, and/or lands. You lose X life. |
| Hyperion Blacksmith | 1RR | Creature — Human Artificer | {T}: You may tap or untap target artifact an opponent controls. 2/2 |
| Wasitora, Nekoru Queen | 2BRG | Legendary Creature — Cat Dragon | Flying, trample Whenever Wasitora, Nekoru Queen deals combat damage to a player, that player sacrifices a creature. If the player can't, you create a 3/3 black, red, and green Cat Dragon creature token with flying. 5/4 |
| Knight-Errant of Eos | 4W | Creature — Human Knight | Convoke When Knight-Errant of Eos enters the battlefield, look at the top six cards of your library. You may reveal up to two creature cards with mana value X or less from among them, where X is the number of creatures that convoked Knight-Errant of Eos. Put the revealed cards into your hand, then shuffle. 4/4 |
| Aspect of Manticore | 2R | Enchantment — Aura | Flash Enchant creature When Aspect of Manticore enters the battlefield, enchanted creature gains first strike until end of turn. Enchanted creature gets +2/+0. |
| Military Discipline | W | Enchantment — Aura | Flash Enchant creature When Military Discipline enters the battlefield, enchanted creature gains first strike until end of turn. Enchanted creature gets +1/+0. |
| Conflagrate | XXR | Sorcery | Conflagrate deals X damage divided as you choose among any number of targets. Flashback—{R}{R}, Discard X cards. (You may cast this card from your graveyard for its flashback cost. Then exile it.) |
| Aether Mutation | 3GU | Sorcery | Return target creature to its owner's hand. Create X 1/1 green Saproling creature tokens, where X is that creature's mana value. |
| Watcher for Tomorrow | 1U | Creature — Human Wizard | Hideaway 4 (When this creature enters the battlefield, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.) Watcher for Tomorrow enters the battlefield tapped. When Watcher for Tomorrow leaves the battlefield, put the exiled card into its owner's hand. 2/1 |
| Morbid Bloom | 4BG | Sorcery | Exile target creature card from a graveyard, then create X 1/1 green Saproling creature tokens, where X is the exiled card's toughness. |