Wandering Soothsman

Mysticism (If this card is in your opening hand and
you aren't the starting player, you may begin the game
with this card on the battlefield with a luck counter on
it. If you do, exile a card from your hand.)
Whenever a creature enters the battlefield under
your control, you gain 1 life. Then put a +1/+1 counter on that creature if this creature has a
luck counter on it.