Barren Autumn

When Barren Autumn you may put a Saga card
from your hand to the battlefield. If you do, put
three lore counters on each Saga you control.
{3}{r}{g}: You gain 1 life for each Saga you control.
At the beginning of your end step, if you cast a
Saga spell this turn, search your library for a card
named Frosted Winter, reveal it, put it into your
hand, then shuffle your library.