Pia's Revolution — ruling 1

There are many important moments in the story, but the most crucial—called “story spotlights”—are shown on cards. These cards have the Planeswalker symbol in their text box; this symbol has no effect on gameplay. You can read more about these events in the official Magic fiction at http://www.mtgstory.com.

Pia's Revolution — ruling 2

If a nontoken artifact is put into your graveyard at the same time as Pia’s Revolution, Pia’s Revolution’s ability triggers.

Pia's Revolution — ruling 3

It doesn’t matter who controlled the artifact when it was put into your graveyard. Pia’s Revolution’s ability will trigger if you own that artifact.

Pia's Revolution — ruling 4

The target opponent chooses whether to have Pia’s Revolution deal 3 damage to them as its ability resolves. You won’t return the card to your hand if that player chooses to be dealt damage or if the card leaves the graveyard before the ability resolves.

Pia's Revolution — ruling 5

If there are no legal targets for Pia’s Revolution’s ability (perhaps because each of your opponents has hexproof), it will be removed from the stack with no effect. No one may choose to be dealt damage and you won’t return the artifact card to your hand.

Pia's Revolution : règles, fonctionnement et interactions (MTG)

Pia's Revolution is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

Whenever a nontoken artifact is put into your graveyard from the battlefield, return that card to your hand unless target opponent has this enchantment deal 3 damage to them.

How it works : Pia's Revolution

Original English text — Wizards of the Coast / Scryfall

#1January 19, 2018· Wizards of the Coast
There are many important moments in the story, but the most crucial—called “story spotlights”—are shown on cards. These cards have the Planeswalker symbol in their text box; this symbol has no effect on gameplay. You can read more about these events in the official Magic fiction at http://www.mtgstory.com.
No other card is named in this ruling.
#2February 9, 2017· Wizards of the Coast
If a nontoken artifact is put into your graveyard at the same time as Pia’s Revolution, Pia’s Revolution’s ability triggers.
No other card is named in this ruling.
#3February 9, 2017· Wizards of the Coast
It doesn’t matter who controlled the artifact when it was put into your graveyard. Pia’s Revolution’s ability will trigger if you own that artifact.
No other card is named in this ruling.
#4February 9, 2017· Wizards of the Coast
The target opponent chooses whether to have Pia’s Revolution deal 3 damage to them as its ability resolves. You won’t return the card to your hand if that player chooses to be dealt damage or if the card leaves the graveyard before the ability resolves.
No other card is named in this ruling.
#5February 9, 2017· Wizards of the Coast
If there are no legal targets for Pia’s Revolution’s ability (perhaps because each of your opponents has hexproof), it will be removed from the stack with no effect. No one may choose to be dealt damage and you won’t return the artifact card to your hand.
No other card is named in this ruling.