Normal - 700+ points
Main goal is to focus to lvl3 powerup and freeze cards + fill jericho ult before boss ult and try to lower his hp as much as possible... Turn after ult is just Powerup - Freeze - Jericho Ult
Recommended food - Attack, Crit chance, Crit dmg
Hard - 650+ points
Comp used below is balanced for attack and survival, main goal is to get lvl3 Powerup card for arthur and fill Eli orbs on second turn, third turn use Powerup, Elizabeth ult and fill other units orbs to atleast 3.. Last turn is just Some big dmg card - Gowther ult - Arthur ult - Jericho ult
Recommended food - Crit chance
If u have problem survive with Jericho, this team works well too

 Gowther - The Goat Sin of Lust
Gowther - The Goat Sin of Lust Arthur - Camelot's Sword
Arthur - Camelot's Sword Merlin - Collector
Merlin - Collector Jericho - Godspeed Knight
Jericho - Godspeed Knight Gilthunder - Chivalrous
Gilthunder - Chivalrous Elizabeth - Liones
Elizabeth - Liones Merlin - The Boar Sin of Gluttony
Merlin - The Boar Sin of Gluttony