It changed at 7.6 and what they have here is the magic system and the mana requirements from from pre-7.6 but mana fluids and regeneration from after 7.6, that's why despite it being set to 1x in their config file it's actually 4x, you only need to burn 400 mana to get 1 magic on this 8.0+ server. It will lead to massive magic level inflation especially when players get very rich and can afford a lot of manas. Expect a 200 mage with 100 magic level
It's already ridiculous, 41 ED has 42 magic level and the server just started and they don't even have that much money yet! It will be completely mage dominated server.