mr hiemer, historian

+1: draw 2 cards. then discard a card unless you attacked with a student this turn
-2: create 2 1/1 white a student tokens on the battle field, or place 2 +1/+1 counters on target creature
-7: you gain x life, and place +x/+x counters on mr.hiemer, historian, where x is the amount of students you control