>>531231418
it's in addition to support effects, so if the card lists 10% of fan count and the unique perk lists 5% of fan count, you have 15% (or maybe like 16% with rounding sometimes). you can use https://gametora.com/umamusume/compare to get the full stats quickly, pic related is a comparison of some good current speed cards vs kitasan black and the orange lines are the ones the unique perk is buffing