If I could create a card, it would probably be the most powerful card in the game. Its name would be Goblin Mime. It would be a neutral monster of common rarity, ( to ensure it was possible for everyone to get one to at least lv 4.) The card art would be a goblin dressed and posed as a mime.
Abilities:
Camouflage
By lv 4 would gain an ability called "Silence!" that negated both summoners' effects, (like silenced summoners rule-set.)
By lv 7 or 8 would gain Redemption.
Stats:
0 attack, 1 speed, 0 armor and 1 health for a mana cost of 4.
The card lore could read:
The goblin mime just wanted to give the world some silent entertainment. but, since no one wants to pay attention to him, he wants to shut those creating these battles up until someone pays attention to him.
The lore could probably be better, but it's late as I write this so, it is what it is...lol
@half-fast