When Fiora is defending a battlefield (gaining +1 might from Shield keyword, making her 6 might total) and an opponent plays Stupefy on her (giving -1 might), does she drop to 4 might and lose her keywords, or stay at 5 might with keywords?

Ruling: Fiora stays at 5 might and retains her keywords during combat. Conditional passive abilities like Shield are checked during Cleanup, not continuously, so even though Stupefy reduces her might by 1, she remains at 5 might (6 from Shield minus 1 from Stupefy) until after combat ends.

Sequence:

• Fiora has 6 might while defending (5 base + 1 from Shield keyword)
• Stupefy applies -1 might, reducing her to 5 might
• She retains her keywords during combat because she still has 5+ might
• After combat during Cleanup, she loses the +1 from Shield and drops to 4 might, losing keywords

Nuances:

• If Stupefy is played before Fiora begins defending, she would not gain the Shield bonus at all
• Rule 522 governs when conditional passive abilities stop applying (during Cleanup at end of combat)