Vana of the Horde

Haste
When Vana of the Horde attacks, you may pay {x}. If you do, put X +1/+1 counters on Vana of the Horde.
As long as Vana of the Horde has three or more +1/+1 counters on it, it has trample.
As long as Vana of the Horde has six or more +1/+1 counters on it, it has lifelink.