Although transforming a permanent uses the same physical action as turning a permanent face up or face down, they are different game actions. Abilities that trigger when a permanent is turned face down won’t trigger when that permanent transforms, and so on.
July 3, 2020 · Core Set 2021
In a Two-Headed Giant game, poison counters are shared by the team. If more than one player on a team is chosen this way, only one of those players can be given an additional poison counter. The player who proliferates chooses which player that is. See rule 810, “Two-Headed Giant Variant.”
May 3, 2019 · War of the Spark
Although transforming a permanent uses the same physical action as turning a permanent face up or face down, they are different game actions. Abilities that trigger when a permanent is turned face down won’t trigger when that permanent transforms, and so on.
January 25, 2019 · Ravnica Allegiance
Although transforming a permanent uses the same physical action as turning a permanent face up or face down, they are different game actions. Abilities that trigger when a permanent is turned face down won't trigger when that permanent transforms, and so on.
April 27, 2018 · Dominaria
Although transforming a permanent uses the same physical action as turning a permanent face up or face down, they are different game actions. Abilities that trigger when a permanent is turned face down won’t trigger when that permanent transforms, and so on.
September 30, 2016 · Kaladesh
rule 701.27b not present in this release
February 1, 2014 · Born of the Gods
If you control no creature tokens when instructed to populate, you won’t put a token onto the battlefield.
October 1, 2012 · Return to Ravnica
If you control no creature tokens when instructed to populate, you won't put a token onto the battlefield.