Isshin, Two Heavens as One

Magic Online Promos (PRM) #98083 · Rare · Legendary Creature — Human Samurai

Mana cost: {R}{W}{B}

If a creature attacking causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

Power/toughness 3/4 · Illustrated by Ryan Pancoast · Released July 24, 2022

Printings

2022-02-18 · wotc — Isshin, Two Heavens as One's ability affects only triggered abilities with conditions that are directly related to attacking, such as “whenever [this creature] attacks” or “whenever you attack with one or more creatures.” It does not affect triggered abilities with other trigger conditions, such as “whenever [this creature] becomes tapped.”
2022-02-18 · wotc — Isshin's effect doesn't copy the triggered ability; it just causes the ability to trigger twice. Any choices made as you put the ability onto the stack, such as modes and targets, are made separately for each instance of the ability. Any choices made on resolution are also made individually.