Uul'netol Embrace vs Garukan Resolve

I'm playing Poisonburst Toxic Growth build with pathfinder and i'm at level 95. I've near endgame gear and Garukan's Resolve on toxic growth.I was thinking to sell and buy uul'netol embrace to put on poisonburst and put Heft on Toxic growth since i use toxic growth only a few times
Or you suggest to use Rigwald Ferocity?