Sunderflock 309 (Lorwyn Eclipsed)

This spell costs {X} less to cast, where X is the greatest mana value among Elementals you control. Flying When this creature enters, if you cast it, return all non-Elemental creatures to their owners' hands.

NM - $4.60
LP - $3.70
MP - $2.80
HP - $1.90
DMG - $1.50