Melanchol Evangel

Tagalong {1}{w}{w}{w}, sacrifice a permenent
(Whenever you attack, you may put this onto
the battlefield for it's tagalong cost. If it's a
creature, it enters tapped and attacking.)
Vigilance, flying
Whenever Melanchol Evangel attacks with
one or more other creatures, put a +1/+1 counter on each attacking creature and you gain 6 life.