Deckbuilding tips?

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Hey guys, newfag here. A friend got me into Magic a while ago, and long story short there's a deck I want to build, but since half of it is from Battle for Zendikar, I want to get it built before half the deck rotates out of standard, and I need some pointers on what to add/subtract from it, specifically cards that are anti-graveyard hate, as it only works with the graveyard.

Here's what I have so far:

CREATURES
3- Gitrog Monsterr
3- Tireless Tracker
3- Ramunap Excavator
4-Jaddi Offshoot
2- Oran-Rief Hydra
3-Geyserfield Stalker
2- Embodiment of Insight
1-Guul Draz Overseer
2-Oblivion Sower


SPELLS
2- Retreat to Kazandu
2-Retreat to Hagra
3- Fork in the Road
3- Blossoming Defense
2- Hour of Promise
3-Cartouche of Strength
3- Driven//Despair
4- Never//Return
2-Destined//Lead

Lands
3-Dunes of the Dead
3-Sun scorched Desert
7-Swamp
12- Forest

Mostly Green With a Splash of Black, appreciate any help I can get.

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