One of these is spelt wrong, not sure which. Heirloom Assegai (LvL 4 Common Weapon) Assagai (LvL 13 Uncommon Weapon) AssEgai or AssAgai?
Maybe. I brought this up before (in the "Card Text Bug Thread"), and was forced to conclude Look at that article you linked and you'll see both are "correct." It only says "E" in the page name because there are no quantum URL's.
Perhaps, however, AssEgai is either a spear or a tree. AssAgai is either a horse or a misspelling of assEgai.