For you youngins, the original Spiderman theme went....

"Spiderman, Spiderman, does whatever a spider can...."

He was attacked (bitten) by a monster (a spider) and gained it's powers. Also for the non-comicbook fans there have been over the last few years storylines involving the "web of life". Wouldn't surprise me a bit if it was for Blue Mage and that the lore will involve "shamans tapping into the web of life for power." Hence, Blue Mage.