I'm just saying, Deadeye has 180,000 HP and he seems to be around pretty early.
If we got Ramuh mid-way through the game then who knows what the enemies hp will be (it seems he does an even number of hits regarldless of enemy - therefore 3 deadeyes could dissipate the damage - but still be wrecked). If we get Noct all 13 of the phantom swords, and have him breaking the damage limit, his armiger abilities would quickly outclass Ramuh. I have a feeling that enemy HP will be insanely high as the game goes on.
Just speculating, of course