Yes, make her a 2/2 for 2 power (ability unchanged -- just removes interaction with crownwatch press-gang)

Yes, limit her ability to one activation per turn

Yes, remove her armor gain ability (buff unchanged)

Yes, make her buff ability only last until end of turn

Yes, but she cannot be balanced in her current state. Make her unplayable (e.g., 5 cost 1/1, remove armor ability, buff lasts until end of turn)

Yes, other suggestion (leave in comments)

No, she is currently balanced

No, she is very strong, but she's fun and healthy in the current meta game