if i play the chase ava hulk at 150 which construct would work best?
decoy or nurse

It's really a personal preference at that point value. I'd probably go with Decoy since you can regen off your last click, which is when you will really need it. Spend your other turns beating face with him and shape change is automatic when targeted. Good luck!

yeah i was thinking start out decoy then after i get 3 or so then switch to regen so i can stack tokens