M:tG card similarity search
4GU · Legendary Creature — Time Lord Doctor
Time Lord's Prerogative — Whenever you cast a historic spell, copy it, except the copy isn't legendary. This ability triggers only once each turn. (Artifacts, legendaries, and Sagas are historic. A copy of a permanent spell becomes a token.) 3/3
| Name | Mana | Type | Text |
|---|---|---|---|
| Serum Sovereign | 4U | Creature — Phyrexian Sphinx | Flying Whenever you cast a noncreature spell, put an oil counter on Serum Sovereign. {U}, Remove an oil counter from Serum Sovereign: Draw a card, then scry 2. 4/4 |
| Drought | 2WW | Enchantment | At the beginning of your upkeep, sacrifice Drought unless you pay {W}{W}. Spells cost an additional "Sacrifice a Swamp" to cast for each black mana symbol in their mana costs. Activated abilities cost an additional "Sacrifice a Swamp" to activate for each black mana symbol in their activation costs. |
| General Ferrous Rokiric | 1RW | Legendary Creature — Human Soldier | Hexproof from monocolored Whenever you cast a multicolored spell, create a 4/4 red and white Golem artifact creature token. 3/1 |
| Stormkeld Prowler | 1U | Creature — Human Rogue | Whenever you cast a spell with mana value 5 or greater, put two +1/+1 counters on Stormkeld Prowler. 2/1 |
| Menagerie Curator | 1G | Creature — Human Citizen | {T}: Add one mana of any color. Spend this mana only to cast a creature spell. Whenever you cast a creature spell that doesn't share a creature type with a creature card in your library, draw a card. 1/3 |
| Pyre Hound | 3R | Creature — Elemental Dog | Trample Whenever you cast an instant or sorcery spell, put a +1/+1 counter on Pyre Hound. 2/3 |
| Kiri-Onna | 4U | Creature — Spirit | When Kiri-Onna enters the battlefield, return target creature to its owner's hand. Whenever you cast a Spirit or Arcane spell, you may return Kiri-Onna to its owner's hand. 2/2 |
| Thunderbreak Regent | 2RR | Creature — Dragon | Flying Whenever a Dragon you control becomes the target of a spell or ability an opponent controls, Thunderbreak Regent deals 3 damage to that player. 4/4 |
| Reset | UU | Instant | Cast this spell only during an opponent's turn after their upkeep step. Untap all lands you control. |
| River Song's Diary | 3 | Artifact | Imprint — Whenever a player casts an instant or sorcery spell from their hand, exile it instead of putting it into a graveyard as it resolves. At the beginning of your upkeep, if there are four or more cards exiled with River Song's Diary, choose one of them at random. You may cast it without paying its mana cost. |