Awesome advice folks, I appreciate it. I guess where I went wrong was how I spent my skill shards, pumping them into my main Eddie at that time when instead I could have maxed out my main team twice over (the only character I've spent shards on is Wickerman and thats only 2). I guess I always thought my characters were expendable, so didn't want to invest.
My talismans obviously need tweaking too, could use more penetrating and debilitating effects instead of stat increases.
I have completed Underworld Madness, but only mastered the first stage, I've mastered Battlefield Madness though. I've also completed all the Time Rift dungeons, with little problem, as having 4 characters on the field makes things a lot easier.
The Angels in the Underworld are my main problem, systematically taking out my characters each turn, or going solely for my Eddie and wiping me out, even though he's maxed out.
The way I've levelled my talismans I'd say I'd have to take a warrior composition, though I have a decent magus lineup in the making also,which I'll explore in the future.
I know that tips for maximising most characters are around here, so I'll be looking into Wickerman, Rocket Dog and Nomad more closely, talismans mainly. Unless anyone wants to post some effective talisman setups for these few
I'd just like to thank you all for your replies and advice, you've made my gaming experience that much better.
Regards,
Watchtower