HOB-124 Down in the Valley

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.)
I - Search your library for a basic land card, reveal it, put it into your hand, then shuffle.
II - This Saga gains "Landfall - Whenever a land you control enters, create a 1/1 green Elf creature token."
III, IV - Elves you control get +1/+0 and gain vigilance until end of turn.