Hexblast

I tried leaguestarting Hexblast as self-cast ignite again recently.
And man, the 1s cast time going from 0.6s makes this feel very rough.

Self-casting curses and blowing them up with Hexblast manually was a very fun and unique playstyle.
And I hope one day you guys would bring the cast time down abit so this would be playable again.

I am trying to understand why this change happened at all, because the more meta play is to cast this spell on mine support. And that playstyle does not benefit from the skillgems cast time at all right?

Hi there, trying an hexblast dot poison to benefit from the "40% more damage with ailments if enemy is hexed". What are the best hexes to use then? I suppose flammability and ele weakness don't apply to lower the resist as it is dot and not hit. So, better to use despair + temporal chains?