Team RWBBBY trained for hours, under the agonizing influence of Pandora's Semblance, which sapped their energy and made every motion feel like it was made under the weight of a thousand planets. And yet, it kept away fatigue. Nothing stopped you from pushing yourself besides your temporary pain.
And they weren't training in their usual gym room. They were training in the Neon Zone, a special room that made necessary objects, artificial enemies, and environmental hazards out of pure energy filtered through all four dust types shoved into an overly-complicated engine that worked using technology so ancient, only the mysterious Ozpin knew how to use it.
In a dark and misty rainforest, surrounded by trees with plant life covering the ground, Ruby and Blaze and Blueberry sparred with their personal training sensei and got beaten so badly, they thought they might die. The first time things got bad for them, the team's cow showed up to heal them. Finally, they thought they had an edge... Until their sensei stopped holding back. Now, it was a struggle to survive long enough for your bone breaks and aura loss to be healed by milk balls tossed by Milky Way to seep into their skin.
Yang struck logs with her fists and legs until her aura broke and her knuckles bled.
Weiss ran atop a treadmill that started at seventy miles an hour and sped up from there, while using her Glyphs to deflect tennis balls fired by tennis-ball-guns Pandora had set up.
And Blake split her gun into a pair of daggers as she fought against armies of holographic man-sized projections made by their gym's training room.
It was brutal, painful, agonizing training that went on past the point that any sensible sensei would call a good spot to stop and rest.
Pandora knew how far she could push others using her Semblance. And she pushed this team close to that limit until they all broke down and needed to rest.
"You've done well, my adorable students!" Pandora shouted, putting her hands on her lovely hips. "You'll make fine Huntsmen and Huntresses some day. For now, get some rest!"
She said that, and left the Neon Zone...
And then she locked the door behind her and started spawning in bandits and wild animals for the team to fight.
"Pandoraaa!" Blaze roared in exhausted fury as he readied his weapons and prepared to fight once more.