Meanwhile the battle between Chuck and his brother Tru was still going strong.  Ariel had managed to take down both Jaws the Tyrantrum and Galapagos the Carracosta.  However, Tru shook things up by sending out both Aegis and Gae Bolg, the Bastiodon and Rampardos respectively, and they took down Ariel before Chuck knew what happened.  Chuck sent out Megumin and Azriel, the Turtonator and Alakazam respectively, in what ended up as a triple KO from everyone getting caught up in Megumin's Shell Trap.  Unfortunately, Megumin was left weakened by the blast, so Marshadow made quick work of her, leaving both with just one usable Pokémon.

Chuck looked around at his surroundings and found he didn't have enough room, so he began running out of the Dragon trial cave and into the open area, Marshadow and Tru on his heels.  "Let's finish this, Christa!" Chuck said, sending out the massive Celesteela.  Marshadow leapt up after Christa, it's fist flaming in a Fire Punch, but Christa swatted it away with a Heavy Slam, knocking it through a couple trees and dealing massive damage due to their weight difference.  Marshadow got up and shook itself off as Tru said "Time to level the playing field, Dynamax Marshadow!"  He revealed an odd bracelet and recalled Marshadow, then the ball grew massive in size and Tru chucked it, revealing a massive Marshadow, on par with Celesteela in height.  "What the hell!?" Chuck cried out, looking on at the massive Pokémon before him.  "A new thing courtesy of the Galar region.  I give you, Dynamaxing.  Now Marshadow, go!"  The Marshadow swung a massive fist a Christa, knocking her back a few feet.  Chuck activated his Z-Ring and, going from Air Slash, Christa unleashed a massive Supersonic Skystrike, knocking the already weakened Marshadow down and reverting it back to normal size.

Marshadow was battered and bruised but still conscious as Tru smirked.  "I see you're not half-bad as a trainer Chuckie.  We'll call this your win for now, but you won't be so lucky next time.  If you really want to know more about what happened, see me in the Galar Region.  With that, he and Marshadow returned to the shadows.  Chuck used a Max Revive on Azriel and had him teleport them back to the Pokémon Center so he could heal his team.  Once done, Azriel locked in on the other's location and teleported Chuck to them.  "Sorry I'm late guys, but I just had an intense battle with my brother."  He then proceeded to tell them everything, including the Dynamaxing and Tru's 'invitation' to Galar.