shinji in evangelion, the angels were able to wipe the floor with all the other eva, but somehow his doesnt even get damaged at all or not enough to completely disable it, even the strongest angel isnt able to damage his eva, plus they never go into detail how the eva is able withstand a poweful energy blast, and yes the berzerk mode is a plot armor/device, never explains where they get the boost of power that gives them the same AT field/gamma blasts of the angels, yea we know his is vessel of the adams. but the evas dont have a s2 engine core LIKE THE ANGELS DO. other than the ones evas cant touch, like ramiel who can fire an indefinte particle cannon which comes close to destroying the eva, arael, or armisael. EVAs are mostly Melee units, and long range attacks are th eonly things that remotely damages them. Naruku from inuyasha, his is more like plot twist/trap card. he comes up with a more powerful barrier with each evolution he goes through, and also able to instantly regenerate despite being completely obliterated but not destroyed, removing his own heart/soul apparently makes him effectively semi-immortal, because inuyasha has a wierd trope going on that demons can age and die, instead of being supernaturally immortal.