Neuvillette, Impartial Iudex

You may lose any amount of life while you cast
a spell to reduce it's mana cost by that amount. (You cannot reduce a spells cost to less than one with this effect)
Whenever you lose life, put that many +1/+1 counters on Neuvillette, Impartial Iudex.
As long as this creature has more than 6 +1/+1 counters, it gains flying and lifelink.