M:tG card similarity search
3WU · Legendary Creature — Time Lord Doctor
Whenever The Seventh Doctor attacks, choose a card in your hand. Defending player guesses whether that card's mana value is greater than the number of artifacts you control. If they guessed wrong, you may cast it without paying its mana cost. If you don't cast a spell this way, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") 3/6
| Name | Mana | Type | Text |
|---|---|---|---|
| Reverent Silence | 3G | Sorcery | If you control a Forest, rather than pay this spell's mana cost, you may have each other player gain 6 life. Destroy all enchantments. |
| Xantid Swarm | G | Creature — Insect | Flying Whenever Xantid Swarm attacks, defending player can't cast spells this turn. 0/1 |
| Grave Choice | 2B | Instant | Target opponent sacrifices a nontoken creature. If that creature had mana value 2 or less, conjure a duplicate of it into your hand. That duplicate perpetually gains "You may spend mana as though it were mana of any color to cast this spell." |
| Omen Machine | 6 | Artifact | Players can't draw cards. At the beginning of each player's draw step, that player exiles the top card of their library. If it's a land card, the player puts it onto the battlefield. Otherwise, the player casts it without paying its mana cost if able. |
| Caves of Chaos Adventurer | 3R | Creature — Human Barbarian | Trample When Caves of Chaos Adventurer enters the battlefield, you take the initiative. Whenever Caves of Chaos Adventurer attacks, exile the top card of your library. If you've completed a dungeon, you may play that card this turn without paying its mana cost. Otherwise, you may play that card this turn. 5/3 |
| Plunderer's Prize | XU | Sorcery | Seek a nonland artifact card with mana value X or less and put it onto the battlefield. If a card with mana value less than X is put onto the battlefield this way, this spell perpetually gains "This spell costs {1} more to cast," then return this spell to its owner's hand. |
| Disaster Radius | 5RR | Sorcery | As an additional cost to cast this spell, reveal a creature card from your hand. Disaster Radius deals X damage to each creature your opponents control, where X is the revealed card's mana value. |
| Soundwave, Superior Captain | Legendary Artifact | Whenever you cast a spell with an odd mana value, convert Soundwave. If you do, create Ravage, a legendary 3/3 black Robot artifact creature token with menace and deathtouch. Whenever you cast a spell with an even mana value, convert Soundwave. If you do, create Laserbeak, a legendary 2/2 blue Robot artifact creature token with flying and hexproof. | |
| March of Otherworldly Light | XW | Instant | As an additional cost to cast this spell, you may exile any number of white cards from your hand. This spell costs {2} less to cast for each card exiled this way. Exile target artifact, creature, or enchantment with mana value X or less. |
| Kaervek the Merciless | 5BR | Legendary Creature — Human Shaman | Whenever an opponent casts a spell, Kaervek the Merciless deals damage equal to that spell's mana value to any target. 5/4 |