Maya Bolas, El Devastado

Partner with Duquesito, Beagle Chetoso
(When this creature enters the battlefield, target player may put Duquesito into their hand from their library, then shuffle.)

You may play noncreature cards from exile
with fetch counters on them if you exiled
them, and you may spend mana as though it were mana of any color to cast those spells.