After Starchy ( voiced by Kenny ) comes down with a cold .
After Starchy ( voiced by Kenny ) needs a magic cure , Finn , Jake , and Princess Bubblegum disguise themselves as wizards and sneak into Wizard City .
After Starchy ( voiced by Kenny ) comes down with a cold and needs a magic cure , Finn , Jake , and Princess Bubblegum disguise themselves as wizards and sneak into Wizard City .