Prevention effects must exist before the appropriate damage event occurs—they can’t “go back in time” and change something that’s already happened. Spells or abilities that generate these effects are often cast or activated in response to whatever would produce the event and thus resolve before that event would occur.
January 25, 2019 · Ravnica Allegiance
Prevention effects must exist before the appropriate damage event occurs-they can't "go back in time" and change something that's already happened. Spells or abilities that generate these effects are often cast or activated in response to whatever would produce the event and thus resolve before that event would occur.
May 1, 2014 · Journey into Nyx
Prevention effects must exist before the appropriate damage event occurs—they can’t “go back in time” and change something that’s already happened. Spells or abilities that generate these effects are often cast or activated in response to whatever would produce the event and thus resolve before that event would occur.
February 1, 2014 · Born of the Gods
Prevention effects must exist before the appropriate damage event occurs -- they can’t "go back in time" and change something that’s already happened. Spells or abilities that generate these effects are often cast or activated in response to whatever would produce the event and thus resolve before that event would occur.
September 30, 2011 · Innistrad
Prevention effects must exist before the appropriate damage event occurs -- they can't "go back in time" and change something that's already happened. Spells or abilities that generate these effects are often cast or activated in response to whatever would produce the event and thus resolve before that event would occur.
June 17, 2011 · Commander 2011
Prevention effects must exist before the appropriate damage event occurs—they can’t “go back
April 1, 2011 · Duel Decks: Knights vs. Dragons
Prevention effects must exist before the appropriate damage event occurs -- they can't "go back in time" and change something that's already happened. Spells or abilities that generate these effects are often cast or activated in response to whatever would produce the event and thus resolve before that event would occur.
February 4, 2011 · Mirrodin Besieged
Prevention effects must exist before the appropriate damage event occurs—they can’t “go back in time” and change something that’s already happened. Spells or abilities that generate these effects are often cast or activated in response to whatever would produce the event and thus resolve before that event would occur.
October 1, 2010 · Scars of Mirrodin
Prevention effects must exist before the appropriate damage event occurs—they can’t “go back
February 1, 2010 · Worldwake
Prevention effects must exist before the appropriate damage event occurs -- they can't "go back in time" and change something that's already happened. Spells or abilities that generate these effects are often cast or activated in response to whatever would produce the event and thus resolve before that event would occur.