Mortos der Soulstealer (S02E03)

Dib calls upon Mortos der Soulstealer, a legendary entity that appears only once every thousand years, hoping to have ZIM's soul taken. To his dismay, Dib discovers that Mortos must first regain his strength before fulfilling the request. In a bid to eliminate ZIM for good, Dib agrees to assist Mortos with a series of bizarre tasks. Meanwhile, ZIM is busy executing yet another nefarious plan around town, which is precisely why Dib was so desperate to summon Mortos in the first place.