The Professor

You cannot pay mana to cast spells.
You may spend Mist counters as you cast a
spell to pay for {1} for each counter spent.
Cards you own in your hand have a Convoke,
Delve, and Imporvise.
Whenever you cast a spell, create a clue token,
a 0/1 Abstraction token that is all colors,
gain 1 Mist counter, mill two cards, and
mystify a random card in your graveyard.