Someone hasn't been to act 3 yet where Tactician mode is completely balancd around usin 3-source spell every fight if they want to kill the enemies before they act.
And even then, it isn't even guaranteed to kill.
And the last fight is so epic because enemies don't die straight away. so much exchange.
If you mean nameless isle by act 3 then I do not see the problem. In fact it has been the easiest area so far, I barely use my source spells and most used one is the dome thing.
The difficulty in general has been dropping the further I get, maybe it is because I do most of the quests so I'm usually at least at the same level as my enemies.
That's part of Act 2. Act 2 becomes really easy because of how gears scales compared to enemies and that once you gain access to level 3 source spell, the difficulty is completely dropped.
Act 3 starts at Arx where encounters are level 18-20 and the game gears no longer allow you stomp all the time. They actually balance you fights around using the 3-source like Arrow storm/Meteor Shower and if you have red prince with you, is when you get probably the most tactical fight in the game IMO.
