The Rival Champions!

Xros Heart stumbles into the middle of a battle between Castle Bastia and IceDevimon's army, where they must compete with Blue Flare for alliance with the Castle.

Synopsis
Arriving in the Lake Zone, Team Xros Heart finds some frozen ToyAgumon and Pandamon. They learn from the White PawnChessmon that Knightmon is drowning in the river. Mikey dives in and unleashes ChibiKamemon to help rescue Knightmon. Afterwards, Knightmon thanks Mikey. Meanwhile, Tactimon tells Blastmon and Reapmon about his encounter with Christopher. At the same time, some ToyAgumon and Pandamon are fighting an army of Icemon and Troopmon led by IceDevimon until Team Xros Heart arrives. They fend off the Icemon and Troopmon while the Pandamon and ToyAgumon fall back to the castle. After some attacks from Team Xros Heart, IceDevimon issues a retreat. Moments later at the castle, Team Xros Heart are introduced to the Lake Zone's princess Persiamon as Christopher enters. Meanwhile, IceDevimon reports to Laylamon about what happened during his encounter with Team Xros Heart. Back at the castle, everyone attends a banquet. Mikey and Christopher have a chat while being overheard by Jeremy, Knightmon, and Ballistamon. The conversation is interrupted when IceDevimon's army attacks the castle. Christopher combines Greymon and MailBirdramon into MetalGreymon who annihilates most of the army. Mikey then realizes that the Icemon have found a way into the castle. IceDevimon and the Icemon with him confront Persiamon until Shoutmon arrives. When Mikey arrives with Dorulumon, Ballistamon, Knightmon, and the PawnChessmon, IceDevimon ends up absorbing the Icemon with him in order to become a much more powerful version of himself. IceDevimon ends up freezing Ballistamon. Just then, Reapmon arrives to help IceDevimon only to be attacked by MetalGreymon. When IceDevimon starts to slowly freeze Knightmon, Mikey combines Shoutmon and Dorulumon to form the Dorulu Cannon which ends up freeing Knightmon. The Knightmon and PawnChessmon combine their attacks enough to cause IceDevimon to regress back to normal and retreat. When Persiamon thanks Mikey, he collapses from overexerting himself again, as two Monitamon watch on. Meanwhile, Laylamon is at a gate that opens to reveal a gigantic Digimon.

Recap
Analyzers from the recap aired before the episode.

Digivolutions
(Number indicates order of occurrence.)

Quotes
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