speed is imba. solarus are too strong or cheap

gaze is strong. basically all spells combined with low cost heroes are deadly like barbs solarus warriors.

Don't think it's bad though since it takes about 6 days to win or lose quest.

I have some changes I've been contemplating that I will try to start implementing when I get some time.

https://ibb.co/HpfZpdM

8 barbarians with speed destroy 2 palaces by the end of Day 2. Now AI dont' stand a chance).
Destructors are completely useless. Take too long time to attack. Game ends within 10 days always.

Maybe return fog of war for everybody(or just for player). It made sense when heroes spawned in the center. Now player benefits much more from it. Returning it would prolong game session a bit and add some randomness, and some extra threat so player won't know if he is going to be attacked

Going to echo virtually everything Enerril stated. Solarii's + Fire Blast/ Solarii's + Life Leech + 5 HP pots / Solarii + Power Shock.

Far too powerful.

Ideally, I'd prefer to see the enhancements (spells, HP Pots, items etc) moved to respective buildings and researched a la similar to how a blacksmith works.

You could really expand on the game mode A LOT here, and have various research buildings doing various things.

Library could have various levels that grants spells to your heroes. Could start with some of the more basic spells (Fire Ball, Fire Shield) and work up to the really powerful ones (Fire Blast, Life Leech, Gaze etc)
Blacksmith could be reintroduced into the mode by researching armor/weapons and granting ALL heroes whatever tier of weapons/armor you've researched.
Marketplace brought back for the various market place items.
And so on.

I think this game mode has a lot of potential and could be really fun. Right now, Solarii's are just FAR too powerful, and building anything but then is a waste. Conversely Paladins are absolutely 100% worthless and are eclipsed by Solarii in every single possible way.