Return to the Ranks [Magic 2015]

Set:	Magic 2015
Type:	Sorcery
Rarity:	Rare
Cost:	{X}{W}{W}

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
Return X target creature cards with mana value 2 or less from your graveyard to the battlefield.