Its easy to view the company as an omnipotent entity that knows how everything will shake out, but when its a dozen or so people trying to figure out entire formats, its easy for certain mishaps to happen, and doubly so with non-rotating formats
Also, if you can find cards like Callous Bloodmage and Golgari Thug to replace some of your noncreature graveyard interaction, you may then want to consider adding Mortal Combat
For example, you can exile a card with suspend that has no mana cost or requires a target even if no legal targets are available at that time
Still, a three-mana board wipe is always worth considering
Transform Basalt Monolith into a creature with Karn Tap Basalt Monolith to add three mana, and pay two mana to untap it
This years MTG World Championship has a prize pool of US$1-million