1) High Kath (highest Speed) -> Speed-boost + Turn-Increase
2) Lanakis for C-rate and ATT buff
3) Warmaiden decr. def
4) Kael - AOE
except having the Right Speed on the first three the only Thing important should be the Right Setup on kael with max-crit (55% crit-chance from his stats in total as his aoe has +15% and 30% come from Lanakis) and rest used to maximise C.Dmg and ATK (C-Dmg highest) you shouldn't Need much.
In the worst case you might even get away with only equipping the first three with 5* or 6* Speed-boots with 1 lvl difference between them and Nothing else, as Kael with 100% crit, 200% C.Dmg and the Att-Buff from Lanakis should kill the enemy Team in one shot.
Of Course you shouldn't pick Teams with super high def/resist buff Leaders then, but most General Teams should be toast like that.
also congrats on those pulls….. really amazing choices :/