When The Meathook Massacre enters the battlefield, each creature gets -X/-X until end of turn.

Whenever a creature you control dies, each opponent loses 1 life.

Non-Elf creatures get -2/-2 until end of turn.

If an opponent controls a Plains and you control a Swamp, you may cast this spell without paying its mana cost.

All creatures get -2/-2 until end of turn.

Menace

When Massacre Girl enters the battlefield, each other creature gets -1/-1 until end of turn. Whenever a creature dies this turn, each creature other than Massacre Girl gets -1/-1 until end of turn.

Menace

Creatures you control have wither. (They deal damage to creatures in the form of -1/-1 counters.)

Whenever a creature an opponent controls dies, if its toughness was less than 1, draw a card.

When Massacre Wurm enters the battlefield, creatures your opponents control get -2/-2 until end of turn.

Whenever a creature an opponent controls dies, that player loses 2 life.

(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.

When The Meathook Massacre enters the battlefield, each creature gets -X/-X until end of turn.

Whenever a creature you control dies, each opponent loses 1 life.

Whenever a creature an opponent controls dies, you gain 1 life.