Baelyt of Innistrad

Deathtouch, First Strike, Flying, Undying
When Baelyt of Innistrad enters the battlefield all player discard a card from their hand. Gain X+1 life for the total converted mana cost of the discarded cards.
Remove a +1/+1 counter from Baelyt of Innistrad and Tap this card to gain X life where X is equal to the amount of creatures in all players graveyards.