Any gates that can tap for colorless mana and otherwise lack colored mana symbols, like Baldur's Gate, have a colorless color identity and can go in any Commander deck
Challenge : If your opponent has an exerted character card (from questing, using abilities, or other effects) then you can challenge them by exerting your characters on your turn
You're up against one of the most refined control machines that Magic has ever developed
But the fervour also appears to have led to an increase in criminal activity targeting games stores
Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.) Whenever a nontoken creature you control dies, if it had counters on it, create X tapped 2/1 white and black Inkling creature tokens with flying, where X is the number of counters it had on it
With its magecraft ability, every instant or sorcery spell (or copy thereof) translates to card draw, fueling your hand and ensuring a constant flow of options