Envoy (Destruction Form)

: You may only play this card on other forms of envoy. Any card this is played on becomes Inert. This Card has 8 Power and can attack.
-5: Destroy Target Non-Planeswalker Permanent.
-10: Negate all battle damage done to this card this turn. If this planeswalker kills a creature it gains Loyalty equal to that creature's Toughness.