Flying, Hatred (Whenever this creature attacks target creature deals damage equal to the combind total of its power and toughness to its controler.)

When Mephisto, Lord of Hatred enters the battlefield, destroy target creature. It can't be regenerated.

Whenever a player casts a spell, put a +1/+1 counter on Mephisto, Lord of Hatred.

Whenever Mephisto deals combat damage to a player, that player discards three cards at random.

When Mephisto, Lord of Hatred dies, you may pay X life. If you do, exile it and return target creature card with converted mana cost X or less from your graveyard to the battlefield under your control.