PoE Templar, Trap builds without Ball Lightning of Orbiting, Devouring Totem, Dominating Blow, Firestorm of Pelting with custom stat filters

Once I found out that Battlemage stacks with the new Spellblade support, I knew I wanted to try it. Brewed up a little Frost trap Inquisitor. Hit 5m Pinnacle with very reasonable investment. What do you think? How can I improve it?

Most builds don't bother with freezing pinnacle bosses which, on top of the fairly high ailment threshold of 25m, have another 70% less damage taken mod that makes it pretty hard to freeze them. The ailment itself is still fairly useful if you can achieve it as it gives you -70% action speed (relevant thread) against monsters that 'Cannot be fully slowed' (aka most endgame bosses) but the payoff usually wasn't there because you could invest in more damage instead and just kill them faster.