Storm of Memories [Avatar: The Last Airbender: Eternal-Legal]

Description

Set:	Avatar: The Last Airbender: Eternal-Legal
Type:	Sorcery
Rarity:	Rare
Cost:	{2}{R}{R}{R}

Storm (When you cast this spell, copy it for each spell cast before it this turn.)
Exile an instant or sorcery card with mana value 3 or less from your graveyard at random. You may cast it without paying its mana cost. If that spell would be put into a graveyard, exile it instead.