I fnished the game with:
Blue Allied soldier, cause of his reflect skill. He is lvl 80 with 2x Holy Arcane, 2x Holy power and 1 xHealth Overwhelming talismans, all of them are lvl 40-50.
Solderi Eddie, I use him a lot of his healing skill, he does AOE p-damage.
Demon dog doing single p-damage with critical. ...
...After that I ditch him for Golden Son Warrior, he does AOE pdamage and has almost all lvl 50 Guardian Fierce talismans + 2 Burning talismans. After my turn is finished, that burning does a lot of damage, most of times spared me another turn and killing all enemies.
My Soldier Eddie and 3rd ally (Blue Allied Soldier was ALWAYS used by me) were changed with 50 other trooper characters, most of them
The Nomad (single attack with own healing),
Child of the Damned - when all 4 enemies were low on health (due to AOE damage from Blue soldier and Soldier Eddie), he was killing them one by one , cause after succesfull kill, COTD has another turn.
Corrupt General
Pharaoh Eddie of his Slave to Death skill, giving imunity for 3 turns for all my gang. After he does imunity on your group, switch to Speed of Light Eddie and use his Restore skill, you can play forever like this if always when it's Speed of light Eddie turn, you use his Restore skill.
Level 80 of all your guys is fine, focus on getting lvl 40-50 talismans. Yes, you need to grind.
Try to finish at least lvl VII in all the Time rifts, that is the lowest lvl for a good drop. I even autofarm Powerslave Madness ...another excelent drop for me (credits, shards) is Battlefield - Kill time, on madness. Always try to play on madnes, even if its lower level
