The First time Wayvern ever saw his Second-Order form was when he went unconscious during a fight with a Kaiju who could suck the Light out of an area with a large radius. To Unlock a hunter weapon's Travel Form is to unlock the hunter's Second-Order form, which, for Wayvern meant an upgraded sword called Apocalypse. The code for this transformation was sent to the Transformer, "Kōtei Wayvern" (Literal Translation: Emperor Wayvern).
"Evolution! Execution!" Wayvern readied Hummingbird for the Travel mode. "Kōtei! Wayvern!" hummingbird went from a giant sword to a hover board, and Apocalypse appeared on Wayvern's side. His duster's outside became a shiny blue hue and the straps turned white and wrapped around everything. There was a crown on his head that had a visor in front of his face. His hair even grew to just above his knees.
Wayvern hopped onto Hummingbird and rushed off in the direction that Avalanche told him to. There was a great sense of speed as Wayvern soared above the chasm that separated Tabletop Mountain from the road to Canterlot City (Yeah he could've Taken the Tram, but he was flying at the moment and that seemed easier). Once he reached the Tabletop part of the mountain, it was a cinch finding Storm and his friends.
"Yo! Kaiju!" Wayvern yelled at Storm once he found them.
"You really care about your friends, huh?" Storm said with his back turned to Wayvern. He turned around and the smugness went away. "Second-Order!? King Relies didn't say anything about that!"
"Then you won't have a plan of action while I take my friends back!"
"You wouldn't hurt them, right!?" Storm snapped his fingers and Flash and the others jumped out of the bush with fighter's stances, still wearing that blank stare. "If you cancel your Transformation, I'll drop the spell on them!"
Wayvern… Avalanche commented. Don't think for a moment he'll break the spell… but I have a plan to do the trick… unfortunately it requires that you cancel the Transformation. Avalanche explained the plan to Wayvern… and Wayvern immediately wished there was another way. Since there was not, Wayvern cancelled the Transformation. And, true to Villainous spirit, Storm sicked his friends on him.
Wayvern, now!
"Shojiki!" Wayvern cast a hunter's hex and brought Applejack out of her trance, and was already working on the next one.
"Yasashi-sa!" Fluttershy's Hypnosis was broken and Wayvern started the next hex.
"Warai!" Pinkie collapsed after a small jolt to Wayvern's side.
"Kandai-sa!" Rarity was blown back into the bushes and Wayvern tried to focus on Rainbow Dash.
"Chisei kokoro!" Dash tumbled into a heap on the grassy surface of the mountain top.
"Majikku!" Twilight stood frozen in mid-attack.
"Oncho!" Flash woke up totally.
"Wha-What? Where am I?" He looked at Wayvern on the ground beaten up and drooling. "Wayvern?" Wayvern stood up, and pulled out his transformer.
"Storm! Give it up! You can't hurt me, or my friends anymore!" at their mention, the others woke up from their suspended states.
"Where are we!?" Twilight asked. "I was in the lunchroom one minute and the next I'm here."
"I'll Explain later… first I'll need your help fighting ugly here."
"How can we help!?" Rainbow asked. "I mean we're not hunters!"
"You are now! I'll Explain later! Just do as I do!"
"Evolution! Execution!"