Selecting artifacts that complement your deck and address its specific needs will make your build shine
Tiamat Tiamat is a straightforward, powerful Dragon commander: when she enters, you search your library for up to five different Dragons and put them into your hand
3) Absorb White-blue went through a long period of doldrums, but Absorb shone as a bright spot in an otherwise dreary landscape
The good part is its main abilities: vigilance and first strike
By narrowing down an identity for each Commander deck, not only do you guide yourself toward more affordable, fun and personal card choices: you create new goals to chase in-game which align more closely to your idea of fun than the often-political question of overall victory
It's probably not as good as Leyline of the Void (although even that's up for debate, I've never attacked for nine with a Leyline of the Void), but it also doesn't take up space in your sideboard