i think you meant focus blast on gengar
sub gengar is an animal, give him leftovers and once he gets a sub up, he straight up ***** everything, he's quite possibly the best user of substitute in the game, he has perfect coverage and you can either use pain split, thunderbolt, or HP fire in the final slot
seriously, substitute gengar is a beast
politoad is easy to deal with, he's a mediocre pokemon with an incredible ability, that's really the only reason to use him
kingdra is the problem, you have stuff that can keep it away from battle but because of his typing and ability, he's quite bulky and cannot be outrun, cloyster should not be your lead as he is your best check to kingdra, unless it's the choice specs set (he could survive one draco meteor...possibly but only at close to full health), kingdra is just an animal in the rain like doryuuzu is in the sand, your best bet is to change the weather but your team is not designed for weather at all...which is problematic
your best bet is to switch blaziken for ninetails and switch landlos for exeggutor i guess but i don't really know