User blog comment:Hitsuji Mamoru/FGO-style Servant Creation Room/@comment-28209103-20170127004532/@comment-28209103-20170129034114

@LL Haven't considered things that far, I mean technically they didn't die, only temporarily have 0 HP to be refilled later.. since the death and revive happened within NP animation unlike for example Arash who die afterwards. Think of it like this they use HP as ammo for NP and later reload it rather than die for real..

think of it as cosmetic hp drain. but maybe I should add guts to the effect but Guts can only provide set ammount of HP not subjective term like half-hp..