For as long as it remains exiled, you may cast it if it's a creature spell
Heres a quick crib sheet, in case youre already thinking of grabbing some precons and want to pick your favorite themes: Commander 2013 Eternal Bargain (White, Blue, Black): Lifegain, artifacts Nature of the Beast (White, Green, Red): Beast creatures, creatures with 5+ power Power Hungry (Green, Red, Black): Creature tokens, sacrificing things Mind Seize (Blue, Black, Red): Big spells, drawing cards (and punishing your opponents for drawing) Evasive Maneuvers (Green, White, Blue): Tapping and untapping, blinking (briefly removing creatures with enters-the-battlefield triggers from play, then returning them, so you get the trigger again) Commander 2014 Forged in Stone (White): Equipment, creature tokens Peer Through Time (Blue): Creatures with morph
Peel-and-stick, bubble-free vinyl no cutting or gluing
Asmo is a somewhat straightforward commander that can only be played if youve discarded a card, which means it's going to lead a madness-based deck
You might summon a fiery dragon to incinerate your opponents forces or cast a spell that freezes them in place with your pre-approved MTG custom tokens