Finally, nice to send god's messenger packing
I had to claw him to death when I ran out of mana
The second half of the game will make a lot of people give up on it.
Not sure if that was technically not easy to do, but not giving you the choice to control the hired monsters makes it harder than necessary to really survive here. Would have been better to control them to have a bit more control over combat, especially in the final fight with the heroes' party and Metatron.
Also, a lot of people upon reaching Metatron will regret having pimped their party too much before fighting Leinad. If you have a really strong party going in with Leinad, all 8 skill slots filled and upgraded to Level III, and all of the heroes in the heroes' party survive, this will be a hell of a fight. I only had to face three and that was already a handful (thankfully my 2nd char with Inferno III died in the fight with Leinad, a bit of luck there).
Metatron himself is pretty tough and I had to grind a bit to get my monster party strong enough to beat him, and only barely, in the end, it was just Leinad and one surviving monster clawing and kicking him with basic, 0 mana cost attacks. Basically came down to luck at the end, could have easily gone the other (as it did in far too many attempts).
One thing that would have been cool is if the dungeon during Leinad's sleep had changed so that you couldn't just rush back to the surface but have to map all over again. Could just have added doors where none had been before, or deleted some that existed before, so without changing the level architecture but just changing the route to escape. Because the reason you go slowly down with the heroes' party is to also map your way, without that back up as Leinad you just rush and are seriously weak when reaching the final confrontation.