I have had somewhat similar team on my first playthrough on classic difficulty; Lohse Hydro+Aero, Sebille Pyro+Geo, Ifan Necro+Summoning and Red Prince with Warfare+Polymorph. It was doing pretty well, i had Glass Cannon talent on Lohse with high initiative, so she always started the turn and dealt massive damage alrdy at the start. Maybe Red Prince with Pyro would be a better combo, due to his Dragon's Blaze, but i was just a newbie back then haha.
After all, i have finished the game without bigger problems, so i think such team build is a decent idea. You can try it without worries, for sure you'll be doing just fine.
D:OS 2 gives you total freedom. On classic difficulty you can finish the game with nearly any build (if you will play good enough). Sure, tactician difficulty is challenging and you need a smart team combo to beat the game, but it's your first playthrough so classic is the way to go.
Last edited by BananowePole; 19/02/20 03:31 PM.