I can search for cards with a mana cost or converted mana cost of 0, but that also gets me cards like Accorder's Shield
Creature - Rogue Faerie Color tag templates(None) Prosperous Thief Ninjutsu ( , Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) Whenever one or more Ninja or Rogue creatures you control deal combat damage to a player, create a Treasure token
Sure, the ceiling on a creature like Legion Warboss is pretty high if it isnt answered, but theres not really a lot of work you have to do to make that happen, really
When its creature does damage to a player, it damages that player equal to the number of cards in their hand
It also probably makes for a great addition to a lot of different red decks since having it passed around the table with everyone drawing cards off it seems like a really fun card to have in play
I hadnt planned on getting them, or any of the Van Gogh stuff for that matter