Custom Class: tank o defensive fighter

in the line of fighter variants, this is a defensive fighter who trades attack and versatibility to become a tank. prime atribute: con

Tank

HD 3 (d10) (1500xp)
Fighting 1 (cleric) (500xp)

Only one fighting style: weapon+shield (+2 custom powers)

Savage resilience
Battlefield prowess (level 5)
Unkillable +2 save throws (level 9)