M:tG card similarity search
· Plane — Alara
Whenever a player casts a creature spell that's black, red, or green, it gains devour 5. (As the creature enters the battlefield, its controller may sacrifice any number of creatures. The creature enters the battlefield with five times that many +1/+1 counters on it.) Whenever chaos ensues, create two 1/1 red Goblin creature tokens.
| Name | Mana | Type | Text |
|---|---|---|---|
| Mirrored Depths | Plane — Karsus | Whenever a player casts a spell, that player flips a coin. If the player loses the flip, counter that spell. Whenever chaos ensues, target player reveals the top card of their library. If it's a nonland card, you may cast it without paying its mana cost. | |
| 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. |
| Become Brutes | 1R | Sorcery | One or two target creatures each gain haste until end of turn. For each of those creatures, create a Monster Role token attached to it. (If you control another Role on it, put that one into the graveyard. Enchanted creature gets +1/+1 and has trample.) |
| Make Your Mark | R/W | Instant | Target creature gets +1/+0 until end of turn. When that creature dies this turn, create a 3/2 red and white Spirit creature token. |
| Hidden Spider | G | Enchantment | When an opponent casts a creature spell with flying, if Hidden Spider is an enchantment, Hidden Spider becomes a 3/5 Spider creature with reach. (It can block creatures with flying.) |
| Urza's Chalice | 1 | Artifact | Whenever a player casts an artifact spell, you may pay {1}. If you do, you gain 1 life. |
| Renegade's Getaway | 2B | Instant | Target permanent gains indestructible until end of turn. Create a 1/1 colorless Servo artifact creature token. (Effects that say "destroy" don't destroy a permanent with indestructible, and if it's a creature, it can't be destroyed by damage.) |
| Biogenic Ooze | 3GG | Creature — Ooze | When Biogenic Ooze enters the battlefield, create a 2/2 green Ooze creature token. At the beginning of your end step, put a +1/+1 counter on each Ooze you control. {1}{G}{G}{G}: Create a 2/2 green Ooze creature token. 2/2 |
| Witchstalker | 1GG | Creature — Wolf | Hexproof (This creature can't be the target of spells or abilities your opponents control.) Whenever an opponent casts a blue or black spell during your turn, put a +1/+1 counter on Witchstalker. 3/3 |
| Beast Within | 2G | Instant | Destroy target permanent. Its controller creates a 3/3 green Beast creature token. |