Adamantite Mace

By means of this spell, the Cleric transmutes his own cudgel, mace, or staff into an enchanted weapon of adamantite, the most magical mineral known. The adamantite weapon gains a +2 bonus to attack and damage rolls, but it can strike creatures normally hit only by +1 or better weapons. As an incarnation of elemental earth, the mace inflicts up to twice the damage (roll twice the required damage dice) against creatures of elemental air or magical avians such as griffons, perytons, pegasi, and Winged Demons and Devils. The adamantite mace retains its special properties for Rounds equal to your level.