Bone Picker — ruling 1

In a multiplayer game, a player may lose the game at the same time that their creatures die. If so, Bone Picker's cost reduction applies.

Bone Picker : règles, fonctionnement et interactions (MTG)

Bone Picker 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

This spell costs less to cast if a creature died this turn. Flying, deathtouch

How it works : Bone Picker

Original English text — Wizards of the Coast / Scryfall

#1August 7, 2020· Wizards of the Coast
In a multiplayer game, a player may lose the game at the same time that their creatures die. If so, Bone Picker's cost reduction applies.
No other card is named in this ruling.