Guild Wars 2

I haven’t played my ele for sometime so this question may sound noobee:

I notice some ele can boost the might in their group. I am wondering how they do that. Is that a trait? If so which one?

Thank for any useful reply in advance.

Ele giving might to other player around by using Fire Field + blast combo finisher

u can learn about it in here http://wiki.guildwars2.com/wiki/Combo

Watch the combos and the weapons swaps.