Pensive Professor (#63)

Type: Creature — Human Wizard

Text: Increment (Whenever you cast a spell, if the amount of mana you spent is greater than this creature's power or toughness, put a +1/+1 counter on this creature.)
Whenever one or more +1/+1 counters are put on this creature, draw a card.

"To the patient mind, no problem is unsolvable."

Set: Secrets of Strixhaven (#63)