User blog comment:AYET/Secondary ability of devil fruit powers/@comment-4004918-20120211081721

well,I'd like to point the only case of Zoan in this matter (not counting mythological and mystical): Hito hito no mi.Of cource,it has 2 other uses.it can instantly teach animals perfect human speech,and when using a drug,it gets 8+forms (if other zoans took a rubmle ball,they prbly would getm more).

Also,the yomi yomi no mi with it's secondary use of the soul,despite it not being the soul soul no mi,and ofc the hmmmm.........damn it i wanna think up 1 more! oh i know! Alvida's! it suposdly gives slippery to tghe body,but it also seems to make the body of the eater the most perfect body out there!
 * nosebleed*