Whenever another Creature dies, or a Creature card is put into a graveyard from anywhere other than the battlefield, or a Creature card leaves your graveyard, Syr Konrad, the Grim deals 1 damage to each opponent. Basically, get some mill and discard in your deck and you can ping everyone to death
While Magic Online and paper MTG match up, the former is horrifically hard to get into for newer players and frankly runs poorly a lot of the time
Sharkey, Tyrant of the Shire FromTheShire: This may not seem like it does a ton, but if you start paying attention in your games you'll find a surprising number of utility lands in your meta that this both stops and lets you steal
Curiously, this ban window is a while away, as were going to have to wait for almost five months
Mass Appeal
This is going to blank a lot of removal spells on the cheap