Does the mana setting at game creation affect node guardians?

[Question]

On 2.5x mana, i keep running into nodes that have 4 great wyrms/great drakes/etc and even with two tricked out champions, i cant win.

[spottedshroom]

You think four Great Drakes or Wyrms is a difficult node? Oh, you sweet summer child.

The short answer is yes, magic strength and difficulty together determine how difficult neutral encounters are. Of course, the harder they are, the more likely you are to find spell books or retorts as treasure.

Great Drakes are probably the easiest of the top-tier enemies to deal with in a node. A single high-level champion with good movement and a strong magic ranged attack can take them out no problem. Great Wyrms are the same except you need a flying hero and to hope that they're not hanging out with Giant Spiders, in which case you need Invisibility instead. Sky Drakes are the hardest - you need multiple very strong, very fast heroes with flying and/or thrown attacks to have a chance of clearing a node full of them without losing anybody.

[Question]

I dont have access to flying or any strong ranged heroes unfortunately. I was able to take out 3 sky drakes, but not 4 great wyrms since my melee heroes die to counter attacks.

Is there any way to mod the game to increase mana income from nodes without affecting node guardians?