
I would have to heavily disagree on your interpretation of THM. It works the same way as BLM, difference being that BLM pulls a lot more. The reason the THM questline puts an emphasis on your personal mana amount is because THM requires the most base mana to cast destructive spells.
Perhaps you misinterpreted what I meant. THM/BLM doesn't just pull energy from the world around them and use it, that's ACN department. What they do is they use their internal reserves, then pull from the earth around them to refill, then expel it again. They're a capacitor in essence. They pull in, push out, pull in, push out.
The reason why BLM nearly destroyed the world, along with WHM is because using more powerful spells means using more aether. They were pulling aether faster than it could naturally dissipate back into the Lifestream.
Perhaps you misinterpreted what I meant. THM/BLM doesn't just pull energy from the world around them and use it, that's ACN department. What they do is they use their internal reserves, then pull from the earth around them to refill, then expel it again. They're a capacitor in essence. They pull in, push out, pull in, push out.
The reason why BLM nearly destroyed the world, along with WHM is because using more powerful spells means using more aether. They were pulling aether faster than it could naturally dissipate back into the Lifestream.