I
Impaired lines of fire
Improved mail armor
Incendiary cloud
Indirect fire engines
Informal morale checks
Initiative
base
during covering
effects of moving on
encumbrances effect on
in aerial combat
in dueling
movements effect on
of combat actions
of magical items
of movement
of psionics
of spells
of unarmed attacks
of weapons
weapon speeds effect on
Injuries
Instant stand
Intelligences bonus proficiency slots
Intelligence of creatures
Investment
Invisibility
Iron will