Transformers: Rise of the Beasts Beast Alliance Beast Weaponizers 2-Pack Optimus Prime & Chainclaw charge into battle together in the Beast Alliance Beast Weaponizers 2-pack. Optimus Prime can convert from robot to truck mode in 13 steps, while Chainclaw converts from wolf to chainsaw in 4 steps. Once converted, attach Chainclaw to weaponize the Optimus Prime action figure. Together, they fight crime. Ages 6 and up.