Just think about the fact that a wraithguard with d-scyth has a 30"-40" threat bubble. ON FOOT.
1st turn opponent, enemy gets first blood wraithguard advance 5"+d6
My movement phase turn 1, wraithguard advance another 5"+d6
My psychic phase, word of pheonix wraithuard soulburst and advance 5"+d6
my shooting phase, wraithguard threat bubble is now a maximum of 41" from where the model was deployed (including weapon range).
Its not just the solitare. Even one of our arguably slowest units with its shortest range weapon option, can reach a, on average, 32" threat range.