Cast Seasons Past by paying ({4} magic symbol) ({G} magic symbol) ({G} magic symbol) , returning Beseech the Queen, Time Warp, and any number of cards with different mana costs to your hand and putting Seasons Past on the bottom of your library.
Cast Beseech the Queen by paying ({2B} magic symbol) ({2B} magic symbol) ({2B} magic symbol) , putting Seasons Past from your library into your hand.
Cast Time Warp by paying ({3} magic symbol) ({U} magic symbol) ({U} magic symbol) , granting you an extra turn.