Whoa!
I think your alocasia may have been abducted and probed by aliens...
Never seen anything quite like that before... @lariann has way more experience than I do!
Great pic, thanks for sharing it and welcome. I wouldn't be too worried about it, but I'm very interested to see if any one else has seen anything like that!
Please tree mail me for trades, I'm ALWAYS actively looking for more new plants, and love to trade!