Mamoswine:
http://www.youtube.com/watch?v=Pk2AZiJxtdg
-I made my team here like most of the people does. Left without counters and you can see what happened. Dozen of Pokemon would counter Mamoswine easy(Gyarados, Starmie, Kingdra, Swampert, Feraligatr and other viable water type Pokemon.)
but people are deceiving themselves and usually they forget that every team requires at least one counter if you fail to have start advantage.
Dragonite:
http://www.youtube.com/watch?v=rR7lKFjFXUw
-After using agility 2 times and Dragon dance also 2 times
Cloyster made him to faint. Dragonites hp was low and gambling another Dragon dance would be a risk. Just to note since I am not sure by myself if Atk is increasing every time Dragon dance is being used. If it is increasing every turn that it would be something worthy to look into. For example
Metagross will not get Atk boost after every Meteor mash attack.
-You also keep forgetting that there are many Pokemon that are able to boost their defensive stat such as Steelix. And countering Metagross with it shouldn't do any harm. This is a rare opportunity in PWO when you can
use some tactic and think instead of doing a routine battle without any special surprises
after you got starter/type advantage. Like every other update, it requires testing and feedback of a people since it wouldn't be good to rely on a opinion of a single individual. Just take a better look into your PC.
Pokemon are getting more and more usable and many of them are becoming competitive.