Merging the Realms

(As this Saga enters and after your draw step,
add a lore counter. Sacrifice after III.)
Whenever a lore counter is placed on
Merging the Realms, you may draw a card.
I - Choose a creature type. Creatures of that type
get +1/+1 as long as you control Merging
the Realms.
II, III - Until end of turn, you may cast
historic cards other than Merging the Realms
from your graveyard.