Backlog Tormod, the Desecrator

[ProR2D2]

Shuffling your graveyard into your library triggers Tormod's ability for each card leaving your graveyard, instead of only once.

 

[Cerbearus]

Yeah I experienced the same thing. Lost a game because I thought he would only create 1 zombie but he was clearly purposely abusing the bug to create a bunch of zombies at once using Feldon's Cane.