Staff of Chiroptera

Staff of Chiroptera is a legendary staff in Diablo III. It requires character level 8 to drop. In patch 2.4, it replaced the Autumn's Call.

The unique affix, with proper gear, makes Firebats de-facto free to cast.

Bonus to Firebats damage can still roll 10-15% as a random affix.

Trivia

 * Chiroptera is a Latin word for bat.
 * This is one of the few Legendary weapons in game that does not use an original model, but rather a recolored version of a.