thanks for the feedback!
Yeah I could have explained that part better. and I wasn't sure how to do it without spoilers. If you kill the villagers early you will get the "Gold Mana" but doing so your "killing your friends". you can find yellow potions within the 4 dungeons to avoid killing your friends completely.
Green potions come from trees as you discovered. but by chopping the trees down your adding to "trees killed" so instead you can collect "patch's of grass" which is one of the secret harvestable items. so by harvesting grass and the life .
once you have collected green and gold mana, the enemies will then start drooping blue and red mana. Additionally destroying the tents and houses will gain you red mana without any negative effects.
I think I'm going to come back to this one and maybe develop the story more.
I wanted to have "Mother of Mana" thanking you for restoring the land of mana, then explaining what sacrifices you made to restore the land. i want the player to first play going through and destroying everything without merest, then come to the end and make them go back and do it again with a better outcome.
Definitely something I could play around with multiple endings with.