M:tG card similarity search
| Name | Mana | Type | Text |
|---|---|---|---|
| Oppression | 1BB | Enchantment | Whenever a player casts a spell, that player discards a card. |
| Belligerent Regisaur | Creature — Dinosaur | Trample Whenever you cast a spell, Belligerent Regisaur gains indestructible until end of turn. 4/3 | |
| Brineborn Cutthroat | 1U | Creature — Merfolk Pirate | Flash (You may cast this spell any time you could cast an instant.) Whenever you cast a spell during an opponent's turn, put a +1/+1 counter on Brineborn Cutthroat. 2/1 |
| Putrefaction | 4B | Enchantment | Whenever a player casts a green or white spell, that player discards a card. |
| Crop Rotation | G | Instant | As an additional cost to cast this spell, sacrifice a land. Search your library for a land card, put that card onto the battlefield, then shuffle. |
| Opal Caryatid | W | Enchantment | When an opponent casts a creature spell, if Opal Caryatid is an enchantment, Opal Caryatid becomes a 2/2 Soldier creature. |
| Opening Ceremony | 4RR | Sorcery | Add {W}{U}{B}{R}{G}{C}. You may open a sealed Magic booster pack. Until end of turn, you may cast spells from among the cards in that booster pack. |
| Artificer's Assistant | U | Creature — Bird | Flying Whenever you cast a historic spell, scry 1. (Artifacts, legendaries, and Sagas are historic. To scry 1, look at the top card of your library, then you may put that card on the bottom of your library.) 1/1 |
| Apex Observatory | Artifact | Apex Observatory enters the battlefield tapped. As it enters, choose a card type shared among two exiled cards used to craft it. {T}: The next spell you cast this turn of the chosen type can be cast without paying its mana cost. | |
| Massacre | 2BB | Sorcery | If an opponent controls a Plains and you control a Swamp, you may cast this spell without paying its mana cost. All creatures get -2/-2 until end of turn. |