Pippin, Guard of the Citadel FromTheShire: A cool twist on the typical 'protection from a color' effects, I like the extra utility it gives you
TEAM UP WITH THE TABLE AND TAKE DOWN THE BADDIESWhen the evil Shredder attacks, Turtles fight back in this exciting new co-operative strategy format for Magic: The Gathering NEW CO-OP GAME MODE!24 players battle for survival against an onslaught of villainous adversaries 4 READY-TO-PLAY DECKSPlay with your favorite of the four pre-built 60-card hero decks, then crack into the included Play Boosters to expand your strategies THE PERFECT TRAINING DOJOTurtle Team-Up is the perfect training dojo for Magic players of any skill level to come together and play WELCOME TO THE GATHERINGMagic: The Gathering is a collectible card game that weaves deep strategy, gorgeous art, fantastical stories, and a thriving fan community all together into a card game experience like no other Lorwyn Eclipsed Jan

This makes sense: mono black is sure to have plenty of kill spells, and this deck needs as much ramp as it can get to bring out its absurd nine mana commander, especially since he's going to be a lightning rod for removal, Ward cost aside
Counter-based Creature decks have also benefited
All of these are card neutral, cheap card quality effects and a discard outlet
Untapping lands allows players to tap them again for mana, while untapping creatures let them both attack and block in the same turn cycle