We have yet to see how the SLK, Hux, SiT trio is gonna work out. SiT is a beast. With the mastery boost (which is all about offense), the +50% CD and crit dmg up upon advantage gain from SLK's leadership he might become another nuke char like GG + JKA. Hux as a support char will probably lose max HP and protection very quickly and become quite fragile (which by the way even makes sense from a story perspective: Hux and Kylo hate each other so Kylo punishing Hux makes sense) and might be the first one to die to any sort of AoE stuff which triggers SiT and might lead to a nuke AoE.