Explain Bone Shield to me, please

[Parcae2]

What I understand (I think):

1. Attacks above a certain amount are ignored
2. Each attack that is ignored drains 1 charge

What I don't understand:

1. What determines the number of charges?
2. Where is this information displayed?
3. How many charges might an endgame shield have?

[darkgod]

The talent description says how many charges you get.
You can get 6/7 bones.
Current number of bones is displayed in the tooltip of the effect.

Bone shield is very good against big attacks, like a nasty soul rot or such, and very weak against multiple small attacks

[Parcae2]

I'm pretty certain that the necromancer's version of the spell does not have that information displayed. Maybe I'm just missing it.

[marvalis]

The bone shield that necromancer gets is different from the other bone shield.
When a necromancer gets a bone shield, all damage is reduced to ~14% of its max hp for a certain amount of turns.
The other bone shield absorbs 1 attack regardless how much damage it does.
As you can see, these effects are completely different, but are confusing because they have the same name.

[darkgod]

Yeah the necro shield is basically a hard hit reducer. It wont do anything to small hits but big hits will never do more than X

[cttw]

The bone shield that necromancer gets is different from the other bone shield.
When a necromancer gets a bone shield, all damage is reduced to ~14% of its max hp for a certain amount of turns.
The other bone shield absorbs 1 attack regardless how much damage it does.
As you can see, these effects are completely different, but are confusing because they have the same name.

Oh wow finally I understand a lot of weird stuff. A rename pls?