Recently an unstoppable force hit an immovable object. A friend played a Sabrina's Gengar against a fossil Haunter. Gengar's Dark Wave deals 20 dmg and stops pokemon powers from working until the end of his opponents next turn, but Haunter has a Pokemon Power that makes hitting him a coin flip, with a heads resulting in a complete negation of the damage and text effects. Does Gengar need to first land the hit, or do the attack effects supercede the Pokemon Power in this case? Thank you in advance. If this is in the wrong place please redirect me.