I bought a Lola Noel from Market and I was surprised it came fully starred, yet in battle I have no idea what the ability does? It has Protection but it doesn't seem to do anything. Other things I see are stuff like Reprisal and Revenge, but the tutorial doesn't mention what they mean.
Protection: Power and Damage means that her stats would be unaffected by a card that would reduce her stats.
Ex) The All Star bonus (-2 opp power min 1) will not decrease her power to 5, but instead her power will remain at 7.
Ex2) The Pussycats bonus (-2 opp damage min 1) will not decrease her damage to 1, but instead her damage will remain at 3.
Protection: Power and Damage
So "- opp. power" and "- opp. damage" don't affect her. This is only if her ability isn't stopped by a card with "stop opp. Ability" as a bonus or ability.
Reprisal is active if you play second in the round. Courage is the opposite.
Revenge is active if you lost the previous round. Confidence being the opposite.