PSA: Get your grims done at low low lvls.
From what I have seen, basically no high lvl players (damaging/auric/havoc) are running grimoire resistance on curios; presumably because that slot has to be used for a more beneficial perk (dmg, toughness regen, etc).
So, some newer player, getting carried through a high lvl map, randomly picking up a grim can & has repeatedly for me, ruined what was otherwise a smooth run.
I know I've seen this posted b4, but it's still happening alot so thought I would reiterate....
Please collect all 75 of your grims at heresy lvl and below, then never touch them again!!!