Artifact Color tag templates(None) Bag of Holding Whenever you discard a card, exile that card from your graveyard
This, combined with menace, means that she is very likely to have at least one target she can connect with
Then theres the nasty defensive combo of Shelob, Child of Ungoliant plus Arachnogenesis
The silver lining for this effect is that finding ways to recur dead creatures is often easier than lands, not to mention untapping them meaning you could generate absurd quantities of mana
However, despite being the hardest card to find, it isn't the one that is worth the most currently
And the nature of Commander forces players to pack their decks with card draw, so Nekusar has no trouble dishing out huge amounts of damage