"Watch out....they're coming...."

This was the magic sentence that made Rio turn his attention to the entrance which was currently being guarded by the elf and that guy. From the dimness was a metallic clinking sound with a herky-jerky rhythm. The source of this noise would soon reveal itself in the form of a shuffling undead soldier. He saw it lurch over and start charging at the two as it screeched, with two other ones like itself in tow. 

As he watched the battle unfold he flexed his clawed hand in anticipation. He looked at their armor and figured what needed to be done to help out. Waiting for the two in front of him to finish their attacks, he then ran off to the side in indirect manner not wanting to draw the enemies' attention, and then ran at them them from the side to flank them and deliver an empowered slash at all three of them with his claw (rend). His goal was less to hurt them and more to specifically destroy that armor that get in the way of delivering blows to them. After delivering the blow he continued to run and then loop around back to the group.