x2Lordly SongleaderIf Poliwag is on your Bench, this attack does 60 more damage. If Poliwhirl is on your Bench, this attack does 90 more damage. If Poliwrath is on your Bench, this attack does 120 more damage.
Hydro SplashAt nightfall, these Pokémon appear on the shores of lakes. They announce their territorial claims by letting out cries that sound like shouting.
If I have a Poliwrath on my bench that evolved from a Poliwag and a Poliwhirl do I get all of the damage bonuses for each of them?
No, you only look at the most evolved stage of a Pokemon in play. The previous stages are now part of that Pokemon.
If I have multiple Poliwag on my bench, does Politoed's "Lordly Songleader" attack do additional damage for each of those Pokemon?
You only get the additional bonus once per Pokemon named in the attack. For example, if you have two or more Poliwag on the bench you only get to add +60 once.
If I have a Poliwag and a Poliwhirl and a Poliwrath all on my bench, does Politoed's "Lordly Songleader" attack do additional damage for each one?
Yes, you get the additional bonuses once per Pokemon named in the attack, which you have on your bench.