Combine Matriarch

Graft 7 (This permanent enters the battlefield with 7 +1/+1 counters on it. Whenever another creature enters the battlefield, if this permanent has a +1/+1 counter on it, you may move a +1/+1 counter from this permanent onto that creature.)
When you cast the first spell during a phase, you may look at the top card of your library. If it is a creature card with toughness less than the number of creatures you control with +1/+1 counters on them, you may put that creature onto the battlefield. If n