Ollea, God of Osage

Flying, vigilance
Whenever a facedown creature enters the battlefield
under your control, put a +1/+1 counter onto it.
{4}{r}{r}: Transform Ollea, God of Osage. Activate
only if there are six or more +1/+1 counters on
facedown creatures you control.
"So they have returned." - Ollea