Elesh Norn // The Argent Etchings

(As this Saga enters and after your draw step, add a lore counter.)
I — Incubate 2 five times, then transform all Incubator tokens you control.
II — Creatures you control get +1/+1 and gain double strike until end of turn.
III — Destroy all other permanents except for artifacts, lands, and Phyrexians. Exile The Argent Etchings, then return it to the battlefield (front face up).

Vigilance
Whenever a source an opponent controls deals damage to you or a permanent you control, that source's controller loses 2 life unless they pay {1}.
{2}{W}, Sacrifice three other creatures: Exile Elesh Norn, then return it to the battlefield transformed under its owner's control. Activate only as a sorcery.

March of the Machine

March of the Machine Promos

Elesh Norn’s triggered ability will trigger separately for each permanent dealt damage by a source an opponent controls, plus once if you’re dealt damage by that source. For example, if an opponent casts a spell that deals damage to you and two creatures you control, Elesh Norn’s ability will trigger three times. Each of those abilities will cause that opponent to lose 2 life unless they pay {1}.

Similarly, the triggered ability will trigger separately for each source an opponent controls that deals damage to you or a permanent you control. For example, if three creatures controlled by an opponent block and deal damage to an attacking creature you control, Elesh Norn’s ability will trigger three times.