Conversation so far:
What was Cibona with Dražen Petrović?
After a year's mandatory service in the military, Drazen Petrović joined his brother and moved to Cibona to form, at that time, the best backcourt duo in Europe.
What position did Dražen Petrovic play?
Shooting guard
Did Cibona withDražen Petrović do well?
Cibona won both the Yugoslav League championship and the Yugoslav National Cup.
How many points per game did Dražen Petrović score that year when Cibona won both the Yugoslav League championship and the Yugoslav National Cup?
Dražen Petrović contributed 36 points to the 87–78 victory over the Spanish League club Real Madrid.

Question: Which season was his personal best?
Self-contained rewrite: Which season was Dražen Petrović's personal best?