This deck also features powerful removal and card draw
The Precon List Before we talk upgrades, let's take a look at the stock list to see what we're working with: A lot of folks say Hosts of Mordor is an unfocused pile of cards but this is just a poor shallow analysis of the deck: looking at the numbers indicate that it's pretty well-focused on Graveyard and Spellslinger: I count 27 Graveyard cards, counting any card that mills (Forbidden Alchemy), discards (The Balrog of Moria), reanimates (Extract from Darkness), or can be cast from the graveyard (Wake the Dragon)
Ravos provides another Cleric tribal commander, something to use with Silverchase Fox to ruin the Theros block Gods, a way to recur some evoke creatures, and (the best option I saw) recurring token producers like Captain of the Watch and Cloudgoat Ranger
I was about 90% of the way through my first playthrough of FF6 when Terras Magic card got spoiled, and while her first ability made sense to me, I was still waiting for her second one to make sense
Once Sahagin has been blocked, casting a noncreature spell in order to cause Sahagin's ability to trigger won't cause Sahagin to become unblocked
Ulamog, the Defiler (Retro Foil) $76.99 Most Eldrazi titans create prohibitive board states and totally flip the advantage, even if most of these cards have high mana costs