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 |
|---|---|---|---|
| Rouse | 1B | Instant | If you control a Swamp, you may pay 2 life rather than pay this spell's mana cost. Target creature gets +2/+0 until end of turn. |
| Keeper of Secrets | 5R | Creature — Demon | First strike, haste Symphony of Pain — Whenever you cast a spell from anywhere other than your hand, Keeper of Secrets deals damage equal to that spell's mana value to target opponent. 6/4 |
| Kozilek's Unsealing | 2U | Enchantment | Devoid (This card has no color.) Whenever you cast a creature spell with mana value 4, 5, or 6, create two 0/1 colorless Eldrazi Spawn creature tokens with "Sacrifice this creature: Add {C}." Whenever you cast a creature spell with mana value 7 or greater, draw three cards. |
| Exert Influence | 4U | Sorcery | Converge — Gain control of target creature if its power is less than or equal to the number of colors of mana spent to cast this spell. |
| Roalesk, Prime Specimen | 2GU | Legendary Creature — Human Mutant | Flying Whenever Roalesk, Prime Specimen or another permanent you control is turned face up, you may pay {X}. If you do, if X is 1 or more, conjure a duplicate of a random creature card with mana value X into your hand. Cloak it. It gains "{G/U}: Turn this creature face up" for as long as it remains face down. Disguise {G}{U} 4/5 |
| Brainstealer Dragon | 5BB | Creature — Dragon Horror | Flying At the beginning of your end step, exile the top card of each opponent's library. You may play those cards for as long as they remain exiled. If you cast a spell this way, you may spend mana as though it were mana of any color to cast it. Whenever a nonland permanent an opponent owns enters the battlefield under your control, they lose life equal to its mana value. 6/6 |
| Cabaretti Revels | 1RG | Enchantment | Whenever you cast a creature spell, seek a creature card with lesser mana value, then put it onto the battlefield. |
| The Key to the Vault | 1U | Legendary Artifact — Equipment | Whenever equipped creature deals combat damage to a player, look at that many cards from the top of your library. You may exile a nonland card from among them. Put the rest on the bottom of your library in a random order. You may cast the exiled card without paying its mana cost. Equip {2}{U} |
| Tempest Hart | 3G | Creature — Elemental Elk | Trample Whenever you cast a spell with mana value 5 or greater, put a +1/+1 counter on Tempest Hart. 3/4 |
| Gruesome Menagerie | 3BB | Sorcery | Choose a creature card with mana value 1 in your graveyard, then do the same for creature cards with mana value 2 and 3. Return those cards to the battlefield. |