Eldaros, the Obliterator

Trample, Vigilance
Eldaros costs {1} less to cast for every creature you
own in your graveyard or exile with total power
and toughness of 7 or more.
Once during your turn, if a creature of an
opponent dies, you may destroy target creature
that player controls with less toughness than
that creature.
If Eldaros becomes the target of a spell, you may
pay 6 life to negate that spell and exile it.