Alex uses a spell to switch brains with Harper, but she keeps on getting the spell wrong, including accidentally leaving Harper with no brain.
Season 1
Season 2
Season 3
Season 4
Smarty Pants Beware Wolf Graphic Novel Racing Alex's Brother Maximan Saving Wiz Tech (1) Saving Wiz Tech (2) Harper Knows Taxi Dance Baby Cupid Make it Happen Fairy Tale Fashion Week Helping Hand Art Teacher Future Harper Alex Does Good Hugh's Not Normous Don't Rain on Justin's Parade - Earth Family Game Night Justin's New Girlfriend My Tutor, Tutor Paint by Committee Wizard For a Day Cast-Away (To Another Show) (I) Wizards vs. Vampires on Waverly Place Wizards vs. Vampires: Tasty Bites Wizards vs. Vampires: Dream Date Wizards and Vampires vs. Zombies Retest
Smarty Pants Beware Wolf Graphic Novel Racing Alex's Brother Maximan Saving Wiz Tech (1) Saving Wiz Tech (2) Harper Knows Taxi Dance Baby Cupid Make it Happen Fairy Tale Fashion Week Helping Hand Art Teacher Future Harper Alex Does Good Hugh's Not Normous Don't Rain on Justin's Parade - Earth Family Game Night Justin's New Girlfriend My Tutor, Tutor Paint by Committee Wizard For a Day Cast-Away (To Another Show) (I) Wizards vs. Vampires on Waverly Place Wizards vs. Vampires: Tasty Bites Wizards vs. Vampires: Dream Date Wizards and Vampires vs. Zombies Retest
