Smudges have to be fairly extreme for them to generate any real interest from collectors
Creatures that enter attacking are never declared as attackers, and as such, they won't cause Demonic Covenant's first ability to trigger
When your commander is capable of drawing cards for you, this limits the need to include multiple sources of card advantage in your deck
Sure, the creature sacrifices itself at the end of the turn, but attacking and forcing your opponent to sacrifice most of their board is usually enough to put you ahead and win the game
While Illusions of GrandeurIllusions of Grandeur will eventually put itself into the yard, not all of our enchantments have that same ability
Whatever you want to play, theres a spellslinger commander for you