M:tG card similarity search
| Name | Mana | Type | Text |
|---|---|---|---|
| Aether Barrier | 2U | Enchantment | Whenever a player casts a creature spell, that player sacrifices a permanent unless they pay {1}. |
| Treetop Defense | 1G | Instant | Cast this spell only during the declare attackers step and only if you've been attacked this step. Creatures you control gain reach until end of turn. (They can block creatures with flying.) |
| Veiled Sentry | U | Enchantment | When an opponent casts a spell, if Veiled Sentry is an enchantment, Veiled Sentry becomes an Illusion creature with power and toughness each equal to that spell's mana value. |
| Stitched Drake | 1UU | Creature — Zombie Drake | As an additional cost to cast this spell, exile a creature card from your graveyard. Flying 3/4 |
| Innocuous Researcher | 3G | Creature — Centaur Detective | Parley — Whenever Innocuous Researcher attacks, each player reveals the top card of their library. For each nonland card revealed this way, you investigate. Then each player draws a card. At the beginning of your end step, you may untap all lands you control. If you do, you can't cast spells until your next turn. 3/4 |
| Opal Titan | 2WW | Enchantment | When an opponent casts a creature spell, if Opal Titan is an enchantment, Opal Titan becomes a 4/4 Giant creature with protection from each of that spell's colors. |
| Enroll in the Coalition | 3W | Enchantment | You are a Flagbearer. While choosing targets as part of casting a spell or activating an ability, your opponents must choose at least one Flagbearer if able. |
| Eye of Duskmantle | 5BB | Creature — Eye | Flying, lifelink You may play lands and cast spells from among cards in your graveyard you've surveilled this turn. If you cast a spell this way, you pay life equal to its mana value rather than paying its mana cost. 3/8 |
| Surprise Deployment | 3W | Instant | Cast this spell only during combat. You may put a nonwhite creature card from your hand onto the battlefield. At the beginning of the next end step, return that creature to your hand. (Return it only if it's on the battlefield.) |
| Knowledge Pool | 6 | Artifact | Imprint — When Knowledge Pool enters the battlefield, each player exiles the top three cards of their library. Whenever a player casts a spell from their hand, that player exiles it. If the player does, they may cast a spell from among other cards exiled with Knowledge Pool without paying its mana cost. |