Make sure you cap out ready recast (just merits + gleti pants really as long as you're 100jp or more). Amount absorbed varies with TP too, so empy+1 gloves are pretty nice for the 600 TP bonus.
Would also recommend some version on the relic hat for the killer instinct augment and 5/5 killer instinct for max duration on that.
Rest shouldn't really matter too much like Buukki said.
EDIT: Forgot about relic gloves, those are pretty much mandatory for anything you do involving a pet or they'll randomly spawn 1-2 levels lower. Also 5/5 Beast affinity merits or the leech is capped at level 99.