I always felt that the invisibility cloak was underwhelming for a deathly hallow. What cool powers can we give it while keeping it canon compliant?
(EDIT)
Best ideas so far:
Cloak is a pocket dimension that hides from death. Can be used like an inventory .
Curses just flow off like water on a rain coat... the cloak can only do small spells at first but eventually levels up to stop the avada kedavra
At higher levels makes the user intangible. Immune to any and all wards.
4.Maybe the cloak is on its last legs in the beginning and gamer!Harry can repair/upgrade the suit using his enchantment skill tree
I'm writing a gamer!Harry fic so inviting ideas along that line