Whenever Archmage s Newt deals combat damage to a player, target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost. That card gains flashback {0} until end of turn instead if Archmage s Newt is saddled. (You may cast that card from your graveyard for its flashback cost. Then exile it.)
Saddle 3