Pensive Professor is a rare Creature — Human Wizard card from Secrets of Strixhaven (SOS), collector number 321. Current market price: $0.83 (foil $1.09), TCGplayer market prices via Scryfall.
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.