The Fall of Shanti

and "autobattle" is just an indicator of a weak player

Autobattle is an indicator of a lazy player, not a weak one. The computer simply doesn't know how to wait; it throws all its troops at the enemy, doesn't retreat from Royal Griffons, casts spells that don't make sense (for example, Tallis has a Phoenix in her spellbook, but she never summons it when I play). If you play on autobattle, of course, any map will become impossible to complete.