Quineloe
Ahn'Qiraj Raider
What is the deal with secondary attacks? Moonblast on my piece of shit vileplume says 85 but it seems like it does about 4.
Poison Steel Fire resists Moonblast. That means Arcanine, Flareons, Charizards, Rapidash, Magmar, Ninetales, Muk, Venusaur, Victreebels, Vileplumes, Nidos, Weezing all resist it. No STAB as Twilight pointed out as well.
It's strong vs Dark (0 Pokemon), Fighting (Machamp, Poliwrath) and Dragon only.
You see it's a very long list of pokemon it's bad against, and a very short list it's good against. (not counting trash that doesn't even break 2k CP at level 40)