Achievements Fix and Bloodthief Update

BALANCE
Bloodthief is now a toggle which drains 30 mana per second.
Suggested by McOp

FIXED
Achievements are now working!
Thanks ♔I̷n̶̒ẗ̸̫́h̸͕͗͑̇͌å̶̊̌͠rt̵̠͌̀h̶♔