Sources of shield bonuses other than actual shields can be useful to characters who don't use shields (such as bow-users, two-handed-weapon wielders, wearers of rune arms or orbs, and spellcasters wishing to avoid Arcane Spell Failure.)
Note that Two Weapon Defense is not treated as shield bonus in DDO. Shield bash causes the player to reliquish this bonus thus reducing their Armor Class unless they have the Improved shield bash feat.
Sources of shield bonus
- Shield +4
- Class abilities: