Wisdom (WIS in your 'score') represents your character's wisdom and ability
to incorporate learning. Among other things, it affects:
- the number of practices a character gains each time it levels
- the mana a character gains each time it levels, though intelligence
affects this much more heavily
- the percentage a character learns of a new language at each practice,
though intelligence affects this slightly more
- the ability to remove a trap or poison a weapon
Wisdom is the prime attribute of druids and clerics.