Suggestions for Pyroclast Mine Elementalist?

Hi,

So, I tried the Saboteur build and didn't really like it so I was gonna try my favorite ascendency, Elementalist. Does anyone have any suggestions for things to take a look at or test?

I have a rough draft of a tree up to around ~90 here: https://pobb.in/4eBt6JcVqBI-

The tech I'm hoping works is that Pyroclast Mines "pop" before firing the mortars a brief second later. I noticed that if you add flat damage to the skill this pop can chill and even freeze, which adds a neat pseudo-defensive layer. With Shaper of Winter we don't even need to add flat cold damage but if there's a way to add enough to get that bonus chill effect I'd love to know. I'm not sure it's possible since the skill says it gains additional flat fire damage per mine in the detonation chain but I'm not sure if that adds to the "pop", the mortar, or both. If just the latter then it might also be possible to enable Elemental Equilibrium which would be neat.

Furthermore, I've also taken the notable Glacial Cage ("Enemies permanently take 1% increased Damage for each second they've ever been Chilled by you, up to a maximum of 10%") as well as the mastery which makes chill effects reduce action speed by at least 10%. I wish GGG hadn't removed the old sources of scaling non-damaging ailment effect but I got that and chill effect where I could.

I've also taken Shaper of Flames which I know sounds weird considering Pyroclast Mines probably aren't a good ignite source but I've also taken Snowforged ("Enemies Ignited or Chilled by you have -5% to Elemental Resistances") and the mastery which increases damage of hits against ignited enemies. So the ignite damage won't be all that much by itself but it will also be enabling some other forms of damage so I think the points ultimately justify themselves.

I'm probably gonna start with Pyroclast Mines in a pair of March of the Legion boots and if the build works I'll look into scaling further. I don't know what typical spell scaling set-ups would actually work for this though (Shavs, Diallas, Skin, etc.). I've never played low life though and don't know when that's possible.

I'm not entire sure how I'm going to scale defenses beyond the typical auras but because I can put the gem mine in the unique boots I was thinking about a Guardian Blessing golem set-up depending on how good the gem is. Maybe I could drop Shaper of Flames and shuffle some points around for that if it's good. Come to think of it, a Guardian Blessing golem providing Discipline might be good for LL.

I think this isn't an entirely stupid idea. I only have ~1500 hours but wanted to start getting into my own builds instead of playing a single Zizaran or Palsteron build every league like I have been doing.

Thanks all!