Welcome to Librarium Online!
It wouldn't hurt to share some thought of your own while starting a thread.
Now on to the Amulet of Itzl. Its the same cost as the Glyph Necklace and both serve to increase the life of your character (lets say a Scar-vet), so lets compare them against each other.
The mean number of times your Scar Vet will survive a failed armour save:
2.833 for Amulet of Itzl
3 Glyph Necklace
On character with more wounds (Oldblood and Slann) the Glyph Necklace gets further ahead.
However, if you are being wounded by a weapon that deals multiple wounds you have a 5/6 chance of avoiding it with the Amulet and only a 1/3 with the Necklace. I have used the Amulet with the purpose of making my opponent waste his first cannonball shot trying to kill a Scar Vet I deployed out of a unit by 'mistake'.
TY, sorry about not having an opinion to offer, but your reply is exactley was i was after, a feasable reason to use the amulet.
again i thank you.