M:tG card similarity search
3UR · Legendary Creature — Time Lord Doctor
The first spell you cast from anywhere other than your hand each turn has demonstrate. (When you cast that spell, you may copy it. If you do, choose an opponent to also copy it. A copy of a permanent spell becomes a token.) Whenever you copy a spell, put a +1/+1 counter on The Twelfth Doctor. 4/4
| Name | Mana | Type | Text |
|---|---|---|---|
| Tidal Influence | 2U | Enchantment | Cast this spell only if no permanents named Tidal Influence are on the battlefield. Tidal Influence enters the battlefield with a tide counter on it. At the beginning of your upkeep, put a tide counter on Tidal Influence. As long as there is exactly one tide counter on Tidal Influence, all blue creatures get -2/-0. As long as there are exactly three tide counters on Tidal Influence, all blue creatures get +2/+0. Whenever there are four or more tide counters on Tidal Influence, remove all tide counters from it. |
| Kozilek's Sentinel | 1R | Creature — Eldrazi Drone | Devoid (This card has no color.) Whenever you cast a colorless spell, Kozilek's Sentinel gets +1/+0 until end of turn. 1/4 |
| Battlegate Mimic | 1R/W | Creature — Shapeshifter | Whenever you cast a spell that's both red and white, Battlegate Mimic has base power and toughness 4/2 until end of turn and gains first strike until end of turn. 2/1 |
| Soulblade Djinn | 3UU | Creature — Djinn | Flying Whenever you cast a noncreature spell, creatures you control get +1/+1 until end of turn. 4/3 |
| Ominous Lockbox | 1U | Artifact — Clue | As Ominous Lockbox enters the battlefield, secretly choose a number between 1 and 20. When an opponent casts a spell with mana value equal to the chosen number, sacrifice Ominous Lockbox. If you do, copy that spell, and you may choose new targets for the copy. {2}, Sacrifice Ominous Lockbox: Draw a card. |
| Sentinel Tower | 4 | Artifact | Whenever an instant or sorcery spell is cast during your turn, Sentinel Tower deals damage to any target equal to 1 plus the number of instant and sorcery spells cast before that spell this turn. |
| Jabari's Influence | 3WW | Instant | Cast this spell only after combat. Gain control of target nonartifact, nonblack creature that attacked you this turn and put a -1/-0 counter on it. |
| Kami of Celebration | 4R | Creature — Spirit | Whenever a modified creature you control attacks, exile the top card of your library. You may play that card this turn. (Equipment, Auras you control, and counters are modifications.) Whenever you cast a spell from exile, put a +1/+1 counter on target creature you control. 3/3 |
| Avatar of Will | 6UU | Creature — Avatar | If an opponent has no cards in hand, this spell costs {6} less to cast. Flying 5/6 |
| Cephalid Shrine | 1UU | Enchantment | Whenever a player casts a spell, counter that spell unless that player pays {X}, where X is the number of cards in all graveyards with the same name as the spell. |