M:tG card similarity search
2U · Creature — Siren
{U}, {T}: Target creature attacks target opponent this turn if able. Morph {U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) 1/3
| Name | Mana | Type | Text |
|---|---|---|---|
| Seize the Day | 3R | Sorcery | Untap target creature. After this main phase, there is an additional combat phase followed by an additional main phase. Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.) |
| Spire Serpent | 4U | Creature — Serpent | Defender Metalcraft — As long as you control three or more artifacts, Spire Serpent gets +2/+2 and can attack as though it didn't have defender. 3/5 |
| Sky Swallower | 3UU | Creature — Leviathan | Flying When Sky Swallower enters the battlefield, target opponent gains control of all other permanents you control. 8/8 |
| Echoing Courage | 1G | Instant | Target creature and all other creatures with the same name as that creature get +2/+2 until end of turn. |
| Accessories to Murder | Artifact — Contraption | Whenever you crank Accessories to Murder, target creature gets +X/+0 until end of turn, where X is the number of creatures you control. | |
| Axis of Mortality | 4WW | Enchantment | At the beginning of your upkeep, you may have two target players exchange life totals. |
| Struggle for Skemfar | 3G | Sorcery | Put a +1/+1 counter on target creature you control. Then that creature fights up to one target creature you don't control. (Each deals damage equal to its power to the other.) Foretell {G} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.) |
| Heart of Bogardan | 2RR | Enchantment | Cumulative upkeep {2} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) When a player doesn't pay Heart of Bogardan's cumulative upkeep, Heart of Bogardan deals X damage to target player or planeswalker and each creature that player or that planeswalker's controller controls, where X is twice the number of age counters on Heart of Bogardan minus 2. |
| Bag End Porter | 3G | Creature — Dwarf | Whenever Bag End Porter attacks, it gets +X/+X until end of turn, where X is the number of legendary creatures you control. 4/4 |
| Guardian Archon | 4WW | Creature — Archon | Flying As Guardian Archon enters the battlefield, secretly choose an opponent. Reveal the player you chose: You and target permanent you control each gain protection from the chosen player until end of turn. Activate only once. 5/5 |