in this situation (if u r still using this character)
u can still con with str stat. u juz need to change :
-item with agi as main philo mix with str (20agi+5str should be good)
-try to get HB set for extra crit rate
-lvling till 132
-DM with 95+ crit rein
if u have 1k+ crit rate at lvl132 ..thats good enough