Actually, it is even more parsimonous to merely assume that Ellone is correct when she says "You can't change the past". This would solve the 'problem' of powers building up instantly, as well as provide a very elegant explanation to the time travelling phenomena in the game.Parsimonious solution to all this nonsense about power build up: ULTI DID NOT GIVE ALL HER POWER TO EDEA. Thank you. That is all.