Rejoice, the source for Ottuk Taming has been found! The Hunter ability is tied to Renown rewards with the Iskaara Tuskarr!
Ottuks are an adorable addition to the Rodent Hunter family, but up until now, the way to tame them has been a bit of a mystery. Any attempts to tame Ottuks have been failing with the error message that you don’t know Ottuk Taming. Since Ottuk mounts come from the Iskaara Tuskarr, many have suspected that it would have something to do with that faction.