Okey, its easy and a lot of people know it already, but for the ones who dont know yet!
to ride an anami war bear just simply get the spell on the 2.3 server, since the items arent added, BUT THE SPELLS ARE ^_^!
Anami War Bear Spell :
43688
New Enchant, Executioner (Chance on Hit : 780 armor ignore) :
42974