When Zealous Conscripts enters, it triggers, untapping Emry.
Activate Tormod's Crypt by tapping and sacrificing it.
Repeat.
This fascinating loop relies on Emry, Lurker of the Loch to continuously pull Tormod's Crypt out of the graveyard and cast it for free, which fuels the noncreature spell trigger on Displacer Kitten. Every time Tormod's Crypt hits the stack, the Kitten blinks Zealous Conscripts, whose entrance trigger untaps Emry so she can tap again and repeat the process. Meanwhile, Tormod's Crypt is freely sacrificed along the way to generate an endless stream of artifact triggers while keeping graveyards clean.