It integrates well into black-based aggro decks or midrange ones that focus on hand disruption or mass discard to keep players low on creatures
Dominion tempts you with the Ring and puts a +1/+1 counter on your Ring-bearer
If you're playing any deck looking to strategically discard cards and especially if your gameplan involves reanimating back from the graveyard, Hashaton, Scarab's Fist is a tempting choice that's worth throwing in your Command Zone
Normally, Cardsphere users send their unwanted cards to other users, which accumulates a sort of bank roll thats then available to other players to send cards to you from a curated wants list
2) There incentive cards are awesome
(In the past, Ive disagreed frequently and sometimes volubly with Jesse Mason, but his blog post on the topic is one of the best Ive seen.) When Unglueds humorous follow-up Unhinged came out in 2004, full-art basic lands illustrated by John Avon, once more black-bordered to allow for regular Magic play, were part of the set