Nice deck :)

I'd suggest more cards similar to Frantic Search that will filter through your deck and dump zombies into your graveyard.

Fact or Fiction, Monastery Siege, Forbidden Alchemy, Fortune's Favor, and Epiphany at the Drownyard all work great in my version. Perpetual Timepiece is also great and filling the graveyard.

Other great zombies: Vengeful Dead, Armored Skaab, Laboratory Brute, Geralf's Mindcrusher

Hope this helps!

Hi MegaMatt13 thanks for all suggestions. I saw your deck and i like it, but my version is a little different than yours, because i'm not concentrate in massive survival, i want to prefer take more value of my cards casting with Gisa and Geralf when zombies have already died or they were descarted.

I tried Fact or Fiction, but I prefer Frantic Search because it's more tempo in my game.sometimes I had Fact or Fiction in my hand and i prefered play another zombie or cast something from my graveyard.

I have got buy Monastery Siege and test it.

Vengeful Dead I tested him but i didn't like because I considerer him poor in stats.

And finally i didn't prefer blue zombies because i can take value with Balthor the Defiled , Gray Merchant of Asphodel , Nykthos, Shrine to Nyx and Crypt of Agadeem.

Sorry about my english, currently i'm learning.

I hope you can understand me.

Oops i skipped Perpetual Timepiece i want to test it too because in my group they have a lot removal of graveyard , but i don't know which card remove in my deck.