Vented Rider List Updated (Spoilers)
Some episodes have already aired in Brzil, which is why I'm posting this list.
Vented:
1.Kamen Rider Incisor-Vented by Len
2.Kamen Rider Camo-Vented by Drew
3.Kamen Rider Thrust-Vented by JTC
4.Kamen Rider Torque-Vented by JTC
5.Kamen Rider Sting-Vented by JTC
6.Kamen Rider Spear-Vented by Kit
7.Kamen Rider Axe-Vented by JTC
The only riders left now are: Kit, Len, JTC, Kase(Siren)and Vic(Wrath). As for Onyx, we can only assume right now who he is but my guess would be is that he's the original Dragon Knight, Adam.