mtg you can have any number of cards The Most Collectible Card Has Yet Another Valuable Variant! Karumonix, the Rat King -

Magic: The Gathering's Secrets of Strixhaven Arena release will see the iconic Japanese Mystical Archive cards return to the game with their native text

How many cards are there that trigger when your opponents play cards

or put a +1/+1 counter on all of your stuff

Afflict is already an okay effect to have on a card, especially weaker creatures to get them in for damage and effects, but giving it to you whole team of zombies is going to force hard decisions and weaken your opponents one way or another

Elder Deep-Fiend 8 Creature Eldrazi Octopus 5/6 Flash Emerge 5UU ( You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creatures converted mana cost.) When you cast Elder Deep-Fiend, tap up to four target permanents

Carpet of Flowers is narrower but has an even higher ceiling