Dovin, Law Enforcer

+1: Draw a card and create a 1/1 colourless Thopter token with flying.
-2: You get an emblem with "Whenever you counter a spell, draw 2 cards, then discard a card.".
-7: Draw 7 cards, then cast any number of non-creature spells without paying their mana costs. Dovin, Law Enforcer can be your commander.