(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
[I] Create a 2/3 red Demon Berserker creature token with menace.
[II] Whenever a Berserker attacks this turn, you draw a card and you lose 1 life.
[III] Add R for each Berserker you control. Until end of turn, you don't lose this mana as steps and phases end.