You also want to be playing a deck that isn't going to be screwed if the wrong card gets exiled - which simply means you want to avoid fragile combo builds for impulse draw
Mono-black clerics is the place to bend the singleton rules of Commander with Shadowborn Apostle
Yes, Magic has effects that skip nearly every phase of a turn, and losing even one key phase can cripple a player
Demonic Hordes The best way to use Demonic Hordes is if you have untap shenanigans
As such, with the precon, I highly recommend running Cloud as your commander, as this will ensure better synergy and a good gameplay flow, even if it starts off slower than most decks in Magic: The Gathering an issue that can be fixed with a few upgrades
Discover new glimmers, locations, items, and powers in these booster packs