Shaggy, Ultra Instinct

Partner with Scooby, Loyal Friend (When this creature enters the battlefield, target player may put
Scooby into their hand from their library, then
shuffle.)
You may play lands and cast noncreature spells
from among cards you exiled that have fetch
counters on them, and you may spend mana as
though it were mana of any color to cast those
spells.