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Astral Shield
Cleric Utility 16

Effect: You conjure an astral shield in 1 square within range. The shield lasts until the end of the encounter. You or any ally gains a +2 bonus to AC while in the shield’s square or adjacent to it. The shield can’t be attacked or damaged.

Move Action: You move the shield up to 3 squares within range.

Astral Shield is a level 16 cleric utility power, introduced for the original cleric. [PH:68]