The card with ninjutsu remains revealed from the time the ability is announced until the ability leaves the stack.
May 3, 2019 · War of the Spark
A player can’t cast spells once a spell with epic they control resolves, but effects (such as the epic ability itself) can still put copies of spells onto the stack.
January 25, 2019 · Ravnica Allegiance
A player can't cast spells once a spell with epic they control resolves, but effects (such as the epic ability itself) can still put copies of spells onto the stack.
April 27, 2018 · Dominaria
A player can’t cast spells once a spell with epic they control resolves, but effects (such as the epic ability itself) can still put copies of spells onto the stack.
February 1, 2014 · Born of the Gods
A player can’t cast spells once a spell with epic he or she controls resolves, but effects (such as the epic ability itself) can still put copies of spells onto the stack.
July 13, 2013 · Magic 2014
A player can't cast spells once a spell with epic he or she controls resolves, but effects (such as the epic ability itself) can still put copies of spells onto the stack.
June 17, 2011 · Commander 2011
Multiple instances of convoke on the same spell are redundant.
April 1, 2011 · Duel Decks: Knights vs. Dragons
A player with fewer cards in his or her library than the number required by a dredge ability can't put any of them into his or her graveyard this way.
February 4, 2011 · Mirrodin Besieged
A player with fewer cards in his or her library than the number required by a dredge ability can’t put any of them into his or her graveyard this way.
October 1, 2010 · Scars of Mirrodin
A player with fewer cards in his or her library than the number required by a dredge ability
February 1, 2010 · Worldwake
A player with fewer cards in his or her library than the number required by a dredge ability can't put any of them into his or her graveyard this way.