Elesh Norn, Mother of Machines [Phyrexia: All Will Be One] Alien Set: Outlaws of Thunder Junction:

Set: Outlaws of Thunder Junction: The Big Score Type: Creature — Ogre Rogue Detective Rarity: Mythic Cost: {3}{B} When Hostile Investigator enters the battlefield

It was a time for rebuilding

then you may pay any amount of {E}

create a 3/3 white Bird creature token with flying and "Whenever this creature attacks

Whenever the final chapter ability of a Saga you control resolves

Elesh Norn, Mother of Machines [Phyrexia: All Will Be One] Alien Set: Outlaws of Thunder Junction:Set: Phyrexia: All Will Be One Type: Legendary Creature Phyrexian Praetor Rarity: Mythic Cost: {4}{W} Vigilance If a permanent entering the battlefield causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time. Permanents entering the battlefield don't cause abilities of permanents your opponents control to trigger.