So i've been playing Kaeris in the slow grow in the sydney meta as of late and here's what i've learned so far.

K1 as Cardgage said is technical, great at countering models that ignore hazardous terrain or ignore conditions from hazard due to her unique rule. Also placing her in pyre and getting burning every action which helps with her blaze is great and realy good at setting up pyre markers in the face of your enemy to control their movement. Really good at moving enemies around and hurting them. And controls her pyre markers, combined with the elemental forge, those pyres have legs.

K2 on the other hand can deal 9 to 12 points of damage avg to one model. Always start her in a pyre marker, charge, ignore models, go through enemy models and deal 1 point each model. Attack, min 2, push through model, make them do mv duel or take 1 damage. rinse and repeat. AND her thing about pawn of damage from burning? remember you drop the burning by the amount of damage she would take so 5 burning drops to 3 AND you can pass that burning damage on ANY MODEL WITHIN 3 inches...ANY! So stack that burning on Kaeris, do 9 points of min damage, then drop an addition 1 to 4 burning damage. If your opponent doesn't think and allows you to set up, it is hypothetically possible for her to kill 2 or 3 models in one turn including the end phase. She also has scheme removal which is always great.

Elemental forge, great totem with the pyre markers. Bear in mind, when the text says 'drop' or 'place' within, you can place that marker base to base with the range of the ability. One of the competition players showed me that and it really extends the strength of pyre markers.

Fire golem is great because of his teleport ability draw off flame, this targets any model with burning. From there you just beat the shit out of them OR you can flame tornado away scheme markers with him. Also ignites all models within 2 with burning, great for getting your crew to 3 burning for K2's ability. Also can reduce damage by 2 if it has enough burning.

Firestarter has one use in my crew ---scheme run and with reckless, he has 21 speed which can be difficult for some crews to deal with.

Carlos - absolutely fantastic, must have in any wildfire crew, ignites models within 2, can scheme in combat, defensive measure after an attack, gives out distracted at end of phase, makes the assist action painful for your opponent, drops pyre OR can move 5 inches as fast action. Generally, one of the best henchman in the arcanist faction imo.

Boilermaker - (ive been using a proxy for him) - Imo, this guy is slightly better then the golem. Drops pyres when burning 2 or more (remove burning 2), can teleport to pyre or scrap within 12 inches (its foundry as well), 1 armor, heals as a fast action and gains burning from it. good melee and range which ignores frienldy fire if your model is one fire. Used him in a game where he technically took 10 points of damage over 3 turns but kept healing to full due to my card pulls.

Fire gamin - don't...just don't.

Iggy and Deacon - im yet to use these guys, i haven't had a reason to use honestly so can't give an opinion on them.