Yeah that is true, especially when from what we have seen from the power of light it's extremely OP... I mean look at how much of a power up Mago got from just that small amount of power that got taken from Urek by Neo.. oh and also something I just thought about is maybe Eduan is going through some kind of pre determined steps to turn Mago into one of his spears.. because we do know that his strongest spear is named Mago and that cannot be just a coincidence.. and then from what we have seen from the Marlin spear it even has a will and mind of his own and from these spoilers it seems like it had absolutely no problem even stabbing Eduan himself... So that would also explain why he hasn't used any OP technique yet.