Board Thread:Fun and Games/@comment-29145474-20160809014118/@comment-26428291-20160817085352

Eru vs. the Emperor-over-Seas can't really be contested, as they both represent God. Aslan would have the same amount of power as Manwë or Melkor. To contest Maia Narnia has Witches.

You could also say that every 'good' Narnian is invincible, because Aslan sent them to Heaven. You could try make the argument that Eru revived Gandalf, but that only happened once.

LotR Elves however are also 'invincible', but only after an extended period of time. Narnians were 'reborn' almost immediately after death, as seen with King Caspian.