Along the way, even before Kyran had gone berserk, Rex already had a change of plan.
He would need to meet with Iris to continue with their attempt to coax the Tabaxi race to in a way, refuse the Angels from passing through their bridge. Due to that, he separated from the group, leaving behind his clone with Agatha and the Feral Phantomclaw Pack.
By now, all of them should've been in Dargena City already.
Rex was within the Dark Elf's territory when the notification from the System, notifying him of Kyran's berserk appeared. Before doing what he initially came here to do—Rex went to check on Kyran and what made him go berserk.
As he cuts through the wood, he deliberately lets out his aura to notify the Dark Elves.
Because of that, Iris intercepted him in the middle.
Making an abrupt stop, Rex turned to the side.