Darvan, Studious Archmage

Sage (Whenever you would draw a card, you may discard a card instead. If you do, scry 2, then draw a card.)
Whenever you discard a card, you may pay {u}{b}. If you do, investigate.
Darvan spends every hour of each day pondering the mysteries of the universe. If only he'd get some sleep, then he might be able to figure them out.