>>41906030Only Keldeo, Greninja, and Starmie are special attackers who could take advantage of Hydro Pump. The physical attackers are limited because 80 or 85 BP Water-type moves are not that strong, even with high attack stats.
Keldeo is really emblematic of why water offense is "cucked". Like Greninja, it has little-no defensive value. It has a better physical movepool than a special one, but despite its high stats, it spread favors special attacking. It has great bulk for an offensive Pokemon that is held back by a mediocre defensive typing.
Manaphy is similar: high BST, now useless ability and bad spread (especially speed) and low BP coverage moves make it outclassed by other waters offensively and defensively.