Illusionist's Bracers

If Illusionist's Bracers somehow becomes equipped to a creature an opponent controls, and an activated ability (that isn't a mana ability) of that creature is activated, you will control the copy of that ability.

If the cost of an activated ability requires Illusionist's Bracers or the equipped creature to be sacrificed, the ability won't be copied. At the time the ability is considered activated (after all costs are paid), Illusionist's Bracers is no longer equipped to that creature.

If the ability is modal (that is, it says "Choose one —" or the like), the copy will have the same mode. You can't choose a different one.