Wake the Past by paying ({5} magic symbol) ({R} magic symbol) ({W} magic symbol) , returning all nonland permanents from your graveyard to the battlefield and giving them haste.
Archaeomancer enters the battlefield, returning
Wake the Past from your graveyard to your hand.
Activate
Phyrexian Altar seven times by sacrificing
Archaeomancer and six other creatures, adding seven ({W} magic symbol) .