Leon, forgetful researcher

Ward — Discard a card
Commander Suspend — {3}{u}{b} (You may cast
this card from the command zone for its suspend cost.
If you do, exile it with X time counters where X is 1
plus the number of times you cast this card from the
command zone this game)
Whenever you draw a card or cast a spell, if Leon
is exiled, mill 2.
Instants and sorceries you control have delve.