PoE Obliteration, Cold, Duration builds

Leveling Tips Act 1 - 5 Rush Elemental Overload on skill tree, if needed pick up Health Mana nodes on right side of witch starter area, i go for life on top right first then branch left to templar area. Buy Minion damage / Infernal Legion support in Act1. Socket in Summon Skitterbots in Act 2. Also optional to level Spiritual Aid during leveling to boost both your and skitter DPS then respec out of it later. On lvl 28 equip 4L Vortex + Deadly Ailments + Cold to Fire + Ignite Prolif

Evening. It's been a pretty smooth transition from cold dot to vortex ignite in the mid game. I've got all my implicits set on boots and gloves. I'm 100 percent spell supressed. &x200B; I gotta level up (92 atm) but i'm getting my ass kicked in t16s &x200B; I think my issues lie with Block/Spell Block. I can't fit in temptest shield yet. &x200B; How to I get to block cap? I'm kind of at a lost on how to get there. Thanks for your advise. &x200B;

My goal is to clear mobs fast so this is an elementalist spamming Vortex on left click which ignites thanks to Shaper Of Flames. Then dual Obliteration wands deal chaos damage which ignites more thanks to Shaper Of Flames. I haven't put much emphasis on the Vortex DPS, the damage dealer are the Obliteration explosions, hopefully. Budget is not bad either, none of these item cost even 100c , most cost much less. The cluster jewel is the only one which might run 1ex. The 6th link is Combustion but that requires a 6L brass drome which is a bit more expensive so I