M:tG card similarity search
| Name | Mana | Type | Text |
|---|---|---|---|
| Sudden Substitution | 2UU | Instant | Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.) Exchange control of target noncreature spell and target creature. Then the spell's controller may choose new targets for it. |
| Magical Hacker | 1U | Creature — Human Gamer | {U}: Change the text of target spell or permanent by replacing all instances of + with -, and vice versa, until end of turn. 1/2 |
| Ornery Kudu | 2G | Creature — Antelope | When Ornery Kudu enters the battlefield, put a -1/-1 counter on target creature you control. 3/4 |
| Geistlight Snare | 2U | Instant | This spell costs {1} less to cast if you control a Spirit. It also costs {1} less to cast if you control an enchantment. Counter target spell unless its controller pays {3}. |
| Mindreaver | UU | Creature — Human Wizard | Heroic — Whenever you cast a spell that targets Mindreaver, exile the top three cards of target player's library. {U}{U}, Sacrifice Mindreaver: Counter target spell with the same name as a card exiled with Mindreaver. 2/1 |
| Rhythm of the Wild | 1RG | Enchantment | Creature spells you control can't be countered. Nontoken creatures you control have riot. (They enter the battlefield with your choice of a +1/+1 counter or haste.) |
| Double Major | GU | Instant | Copy target creature spell you control, except it isn't legendary if the spell is legendary. (A copy of a creature spell becomes a token.) |
| Common Courtesy | 2UU | Enchantment | Whenever a player casts a spell without asking your permission while casting it, counter that spell. When a player asks you permission to cast a spell and you refuse, counter that spell and sacrifice Common Courtesy. |
| Leyline of Lifeforce | 2GG | Enchantment | If Leyline of Lifeforce is in your opening hand, you may begin the game with it on the battlefield. Creature spells can't be countered. |
| Access Denied | 3UU | Instant | Counter target spell. Create X 1/1 colorless Thopter artifact creature tokens with flying, where X is that spell's mana value. |