Spell Immunity Question

[tbuczek]

Greater Spell Immunity allows you to pick up to 1 spell for every 4 levels and you are immune to that spell.

How would this in conjunction with spells that affect magic work.

For instance

Lets say I am a level 20 cleric, and I cast Greater Spell Immunity.
If I pick Anti-Magic Shield as the Spell I am immune to, which effect wins out?

Spell Immunity? Or Anti-Magic Field.

[HaraldKlak]

tbuczek wrote:

Greater Spell Immunity allows you to pick up to 1 spell for every 4 levels and you are immune to that spell.

How would this in conjunction with spells that affect magic work.

For instance

Lets say I am a level 20 cleric, and I cast Greater Spell Immunity.
If I pick Anti-Magic Shield as the Spell I am immune to, which effect wins out?

Spell Immunity? Or Anti-Magic Field.

The antimagic field negates your powers.

Spell Immunity (or Greater) does not function if you aren't allowed spell resistance.
The Antimagic Field isn't countered by spell resistence (apart from summoned creatures to stay on the material plane).