(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 or phases end.