I don't know anything about any TCG but I love this idea. Some suggestions:
1) Yabs that get activated like trap cards in Yugioh
2) Rrat creature type; Rrat Breeder, Rrat King, etc and Rrat Slayer cards to oppose them. Probably using black mana.
I picture them looking like a cross between these but more stitched together, kind of like Frankenstein:
3) Shitposter's Successor: Reverses the effects of all yab cards used by the opponent while this card is in play.
Art would be the 4 out of 5 star hat with rabbit ears or a legally distinct version of this:
4) Favored 2 view: Greatly boosts the power of one card under a certain mana cost
I might draw some art for these when I'm free if this idea doesn't die in in the next few hours.
1) Yabs that get activated like trap cards in Yugioh
2) Rrat creature type; Rrat Breeder, Rrat King, etc and Rrat Slayer cards to oppose them. Probably using black mana.
I picture them looking like a cross between these but more stitched together, kind of like Frankenstein:
3) Shitposter's Successor: Reverses the effects of all yab cards used by the opponent while this card is in play.
Art would be the 4 out of 5 star hat with rabbit ears or a legally distinct version of this:
4) Favored 2 view: Greatly boosts the power of one card under a certain mana cost
I might draw some art for these when I'm free if this idea doesn't die in in the next few hours.