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 - $4.40
LP - $3.50
MP - $2.70
HP - $1.80
DMG - $1.50