If a player is instructed to ignore a roll, that roll is considered to have never happened. No abilities trigger because of the ignored roll, and no effects apply to that roll. If that player was instructed to ignore the lowest roll and multiple results are tied for the lowest, the player chooses one of those rolls to be ignored.
July 23, 2021 · Adventures in the Forgotten Realms
In a Planechase game, rolling the planar die will cause any ability that triggers whenever a player rolls one or more dice to trigger. However, any effect that refers to a numerical result of a die roll, including ones that compare the results of that roll to other rolls or to a given number, ignores the rolling of the planar die. See rule 901, “Planechase.”
May 3, 2019 · War of the Spark
When copying a permanent, any choices that have been made for that permanent aren’t copied. Instead, if an object enters the battlefield as a copy of another permanent, the object’s controller will get to make any “as [this] enters the battlefield” choices for it.
January 25, 2019 · Ravnica Allegiance
When copying a permanent, any choices that have been made for that permanent aren't copied. Instead, if an object enters the battlefield as a copy of another permanent, the object's controller will get to make any "as [this] enters the battlefield" choices for it.
May 1, 2014 · Journey into Nyx
When copying a permanent, any choices that have been made for that permanent aren’t copied. Instead, if an object enters the battlefield as a copy of another permanent, the object’s controller will get to make any “as [this] enters the battlefield” choices for it.
February 1, 2014 · Born of the Gods
When copying a permanent, any choices that have been made for that permanent aren’t copied. Instead, if an object enters the battlefield as a copy of another permanent, the object’s controller will get to make any "as [this] enters the battlefield" choices for it.
September 30, 2011 · Innistrad
When copying a permanent, any choices that have been made for that permanent aren't copied. Instead, if an object enters the battlefield as a copy of another permanent, the object's controller will get to make any "as [this] enters the battlefield" choices for it.
June 17, 2011 · Commander 2011
When copying a permanent, any choices that have been made for that permanent aren’t copied.
April 1, 2011 · Duel Decks: Knights vs. Dragons
When copying a permanent, any choices that have been made for that permanent aren't copied. Instead, if an object enters the battlefield as a copy of another permanent, the object's controller will get to make any "as [this] enters the battlefield" choices for it.
February 4, 2011 · Mirrodin Besieged
When copying a permanent, any choices that have been made for that permanent aren’t copied. Instead, if an object enters the battlefield as a copy of another permanent, the object’s controller will get to make any “as [this] enters the battlefield” choices for it.
October 1, 2010 · Scars of Mirrodin
When copying a permanent, any choices that have been made for that permanent aren’t copied.
February 1, 2010 · Worldwake
When copying a permanent, any choices that have been made for that permanent aren't copied. Instead, if an object enters the battlefield as a copy of another permanent, the object's controller will get to make any "as [this] enters the battlefield" choices for it.