(A Treasure token is an artifact with ", Sacrifice this token: Add one mana of any color.") Whenever one or more creatures you control deal combat damage to a player, create a Treasure token, then look at the top card of that player's library and exile it face down
Though youll lose it after a few turns, it can do a lot for you while its on the field and help you fetch some good artifacts
The smaller, more common creature types that a color leans on are called characteristic, while the large finishers are iconic
[+1]: Put three +1/+1 counters on up to one target noncreature land you control
This may seem normal, but it speaks to his care of legibility: the painting not only had to work at full size, but he wanted to make sure it functioned well both artistically and narratively at card size, where most would see it