Milling can be annoying, although nowhere near as annoying as land destruction, latter easily the most un-fun way to play Magic
This card has a strong potential to wreak havoc in various Constructed formats
Espers to Magicite is good against any graveyard decks, as well as any decks that play big creatures, which, in Commander, is more decks than not
Library of Leng A lot of no maximum hand size cards tie into the theme of knowledge, so Library of Leng is right at home
Crucible of Worlds Crucible of Worlds holds up in decks that regularly need to replay lands from their graveyard, but this text gets tacked onto so many cards these days that its no longer a unique effect
Following an attack, the player draws one card for each equipped attacking creature