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 - $5.00
LP - $4.00
MP - $3.00
HP - $2.00
DMG - $1.50