Fists of Fire

The target of this spell must either be blocking
an attacking creature or having a creature you
don't control block it.
Target creature gets +1/+3 until end of turn.
When that creature deals combat damage to a creature you don't control destroy that creature
and scry X where X was that creature's
toughness. When a creature you don't control
deals damage to the target of this spell, that
creature gains indestructible until end of turn.