I am new to the game (currently lvl 19) and I've been reading the forums about how more experienced players don't like new players who don't know how to play. But, then all I can really find about strategy for enchantress characters is to heal everyone and spam buff/debuff. Is that really all that an enchantress in the party should be doing? If so, does that still apply for pallys? If the idea is for a tank and bird to deal the damage while the pally spams buff/debuff/heal, then why do so many not protect the enchantress so that they can do that without getting blasted by the MOBs?

I guess my question comes down to: (a) what is the ideal role/strategy for playing enchantress (pally, but interested in all builds) and (b) how does that fit in with the overall party strategy?

Also, do the skills Weakness and Nightmare keep increasing the effect every time they're cast in a particular battle? In other words, is there a point to keep casting them or is the effect only helpful the first time it's cast on a particular enemy?