Hearthpwn

Goal: You want use Grave Rune, Wretched Reclaimer, Shadowy Figure on Convincing Infiltrator, Khartut Defender, Mechanical Whelp, or as a last resort Zerek, Master Cloner.

At the mid-late game, after you've Mass Resurrection and kept it stable, you can use Embalming Ritual on Spirit of the Dead to refill your board back into your deck.

As an alternative mid-late game strategy, you can use Embalming Ritual, Grave Rune, and Shadowy Figure on Kobold Sandtrooper.

Mulligan: You you want to keep Mass Dispel, Rotten Applebaum, and Convincing Infiltrator.

Try to avoid using your Mass Hysteria until there is no other choice.

Rotten Applebaum and Khartut Defender go nicely with completing your Activate the Obelisk, and Zilliax also goes good with Mechanical Dragon for some big heals.

And as a final alternative, you can use Galakrond, the Unspeakable which removes one and can generate more cards to keep you afloat.

Keep in mind for Plague of Death and Sap so it doesn't interfere with your deathrattle combos.

You want to hold out as much as you can until you can get your goal.