Astradire, Annihilating Steel

Equipped creature gets +5/+5 and has trample
over players. (If equipped creature would deal lethal
combat damage to an opponent, it can deal excess
combat damage to another target player.)
Whenever equipped creature attacks, if the
defending player's life total is less than the
power of the equipped creature as it attacks,
it gets +15/+15 until end of turn.
Equip {3}