Desolation of Smaug

(As this saga enters and after your draw step, add a lore counter.)
(I)Desolation of Smaug deals 3 damage to target opponent and each creature they control.
(II)Create Three Treasure Tokens.
(III)Until end of turn, you may cast instant and sorcery spells from any graveyard. If a spell case this way would be put into a graveyard, Exile Desolation of Smaug, then return it to the battlefield (front face up).