Does Fiora, Peerless's ability trigger if combat becomes 1v1 after she's already been designated as attacker/defender, or does it have to be 1v1 at the moment of designation? Can the bonus be removed if more units are added later?

Ruling: Fiora's "When I Attack/Defend" ability only triggers if she is in a 1v1 situation at the exact moment she is designated as attacker or defender. Once triggered and resolved, the bonus cannot be removed.

Sequence:

• Fiora must be designated as attacker or defender
• At that exact moment, it must be a 1v1 situation
• If both conditions are met simultaneously, the ability triggers
• Once resolved, she gains the bonus permanently for that combat

Nuances:

• If combat starts as 1v2 and later becomes 1v1, the ability does NOT trigger because the designation timing has already passed
• If combat starts as 1v1 (triggering the ability) and later more units are added, she keeps the bonus because the ability uses "when" not "while"