More, Trolls vs Elves the variations please, like a spirits collect mana on trees but accumulate in mana well. And spirits summon in mana well, will be upgraded and collect 1 level, 1 mana 10 sec 2 level 1 mana 5 sec, 3 level 1 mana 1 sec, etc. Gold mine and wall don't show the mana. But upgrade want to be mana. And more ideas etc..