Endless Voyage Stage 10 - Langrisser Mobile
Gimmick gimmick everywhere.
For this one:
1. The saint gives you a 2 turns buff, that lets you hit very hard. It will be given to a random unit of yours, or spawn on the ground. Be careful not to hit the saint with this buff, since he will reflect the damage he takes. You should use this buff to hit him in his demon form instead to damage him a lot without repercussion.
2. The demon gives you a 2 turns buff, that lets you deal fixed damage before and after your units enter battle. It will be given to a random unit of yours, or spawn on the ground. Don't hit the demon with this buff, he will heal more than the damage you deal to him with the buff. You should use this buff to attack him in his saint form instead, in order to exhaust his armor stacks.
3. Both forms have an AoE skill that lets them act again if it hits more than 3 of your units.
Luckily, the enemy doesn't hit too hard. You should be fine with a tank or even without.