they also do everything that a creature can do, and are affected by anything that affects a creature (including Lightning Bolts and summoning sickness)
One of the most powerful is Leyline of the Void
every time you cast one that has a converted mana cost higher than three, you ping your opponents for two damage while also gaining two life in the process So, if you don't want your entire deck focused on Creatures and attacking, this is the Commander for you
If you take the time to build an engine around Loot, which probably involves cards like Displacer Kitten, you have a commander that spits out copies of Dark Ritual and Ancestral Recall
And it has upside beyond that because you can put the counter elsewhere or cycle it early
Leading the way is Shenzi, a terrifying way of gaining a lot of lore very quickly