Winter-Tail, Kitsune Mystic

At the beginning of combat on your turn, you
may put an Aura card from your hand onto the battlefield attached to target creature or player.
Threshold -- As long as there are seven or more cards in your graveyard, Winter-Tail, Kitsune Mystic gets +3/+3 and has flying.
"There will be no foolish sword swinging in my presence." - Winter-Tail