Shrine of Druid's Past

When Shrine of Druid's past enters the battlefield, create X 1/1 white spirit creature tokens with flying.
At the beginning of your end step, put a lore counter on Shrine of Druid's past, and then create X 1/1 white spirit creature tokens with flying.
Exile Shrine of Druid's Past, destroy target creature or land, and then create a 3/3 green bird creature token with flying, double strike and haste.