Ishtar, Scion of Belphegor

Ishtar, Scion of Belphegor costs {x} less to cast, where X is the number of creatures in the battlefield.
Trample, hunger 4
Ishtar, Scion of Belphegor gets +1/+1 for each hunger counter on it.
"His visit marks the cycle's end. Sadly the cycles are getting shorter."
-Benalish Elder