Help me round out this control team comp idea

I want to try a control/displacement team comp out for my next run and was wondering if I was missing something obvious here.

1. Nature cleric - gets the good aoe control spells while also being a cleric so can be a heavy armor healer on top of casting all the terrain spells.

2. EB warlock - HoH + blasting everyone around in the bad terrain.

3. Sorrow Hunter - A variant of this build Gives the team another frontliner and if you go to ranger 8 you also get land stride to take advantage of the terrain

4. Not really sure what to round it out with but I was thinking of doing an ice based caster.