Winx Club: 4x23
Bloom's Trial (a.k.a. Bloom's Challenge)
Bloom and the rest of the Winx face off against the fairy of war, Nebula, while also trying to protect Roxy from her. Bloom fights Nebula with the agreement that Nebula drop her campaign for revenge if Bloom wins.
4 - 1The Wizards of the Black Circle Apr. 15, 2009
4 - 2The Tree of Life (a.k.a. Fear in Pixie Village) Apr. 17, 2009
4 - 3Winx on Earth Apr. 20, 2009
4 - 4Love & Pet (a.k.a. Magic Pets) Apr. 22, 2009
4 - 5Mitzi's Present (a.k.a. Ogron's Spell) Apr. 24, 2009
4 - 6A Fairy in Danger (a.k.a. A Fairy Found) Apr. 27, 2009
4 - 7Winx Believix (a.k.a. I Believe in You) Apr. 29, 2009
4 - 8Hidden in the Country May. 01, 2009
4 - 9Nebula (a.k.a. Nebula's White Circle) May. 04, 2009
4 - 10Musa's Song (a.k.a. The Audition) May. 06, 2009
4 - 11Superheroes May. 08, 2009
4 - 12Dad! I'm a Fairy (a.k.a. The Pet's Pursuit) May. 11, 2009
4 - 13The Wizard's Attack (a.k.a. Roxy's Energy) May. 13, 2009
4 - 14The Perfect Number (a.k.a. Bringing Magic Back) Oct. 14, 2009
4 - 15Magic Lessons (a.k.a. The New Witch in Town) Oct. 16, 2009
4 - 16A Virtual World (a.k.a. A Virtual Hideout) Oct. 19, 2009
4 - 17The Enchanted Island (a.k.a. Island Tricks) Oct. 21, 2009
4 - 18The Nature Rage (a.k.a. Diana's Attack) Oct. 26, 2009
4 - 19In Diana's Kingdom (a.k.a. In the Amazon Forest) Oct. 28, 2009
4 - 20The Gifts of Destiny (a.k.a. Diana’s Redemption) Oct. 30, 2009
4 - 21Sibylla's Cave (a.k.a. The Fairy of Justice) Nov. 02, 2009
4 - 22The Frozen Tower (a.k.a. Aurora's Tower) Nov. 04, 2009
4 - 23Bloom's Trial (a.k.a. Bloom's Challenge) Nov. 06, 2009
4 - 24The Day of Justice (a.k.a. The Wizard's Trap) Nov. 09, 2009
4 - 25Morgana's Secret (a.k.a. Home at Last) Nov. 11, 2009
4 - 26Ice and Fire (a.k.a. Duel in the Omega Dimension) Nov. 13, 2009