I think, this can be a fluffy-fun list to play against
. Not much diversion in choices, but hey: less rules and stats to remember for him
.
The list got both anti tank and anti infantry in there but remember: if the Fire Prisms fall, you cant open anything reliably anymore.
Now my ideas:
I don't think Vectored Engines are worth the points at all. But especially if you have
BL on those Serpents they don't want to advance ... ever. Same goes for Prims. You can't fire heavy weapons after advancing and the VE only works after advance. That would free up 60 points.
Furthermore: You could change the loadout for your Serpent from
TL BL to
TL Shurikken Cannons (and spare those 5 points for a CTM) and go for a gunline of maybe DR. They would provide your list more anti tank and anti multi wound infantry (yes I mean you, you Primaris
SM xD).
Maybe 2 Jetseers are to much. Switch one of them for a Jetlock and give him Conceal. This could help your Windriders to hold objectives. And when we talk about holding objectives: If one squad wants to go for an objective and stay the rest of the game there: Think about giving them
SL (more range, S6 and a shoot more).
Have fun