Zombie help

[Agarrita80]

What are some effective instant or sorcery cards for a zombie deck? (Standard)

[Wackaman9001]

{Zombie apocalypse} {army of the damned}

[Kagain123]

If you're using  {Gravecrawler} sac loops, try  {Tragic Slip}. If going BG, use  {Putrefy}