So yesterday i had the pleasure of trying Kult of speed for the first time in 10th edition. This was against an unfortunate Drukhari player.
The list was just a mix of things i knew were good (warbikers/deffkoptas) and buggies i wanted to try. All in all i think the best kult of speed lists has some more melee from units in trukks or something but i decided to forego it this time.
I had:
18 warbikers
18 deffkoptas
3 squig buggies
3 Boosta blasta
3 scrapjets
3 Snazzwagons
10 grots
Snikrot + Wartrike
The deployment itself was hammer and anvil and i decided to put 1 scrapjet in reserve and 12 deffkoptas in deepstrike. But im not sure how to field all this in a search and destroy deployment. At least many of my units will be open to be shot turn 1.
In our game i had turn 1 however, and while i made a lot of mistakes it ended with a 75-55 victory to me. Advance/fallback and shoot/charge is nice to have, but you really dont deal a lot of damage, and ork
CP economy isnt great, so finding 2
CP for Blitza fire/dakka storm + reaction moves can be a bit rough.
Even in to drukhari you dont just instantly destroy them because you have no detatchment bonus to damage like sustained hits, so fighting in to Knights, imperial guard or even vehicle heavy other lists can probably be very rough.
Damage is a bit lacking (but drukhari saves arent amazing either) but you can trade very well. Especially when the deffkoptas came up carnage really unfolded. And Warbikers are so annoying for them to kill, given they have anti vehicle units and anti infantry, but the grey zone of toughness 6 mounted units, they cant deal well with those.
However, i do think maybe Kult of speed is a very good counter to Aeldari, Drukhari, and maybe Admech, which are all very strong armies these days. Just if you want to try something different that might actually counter your local strong armies.
With all that said, buggies need a complete overhaul