A team build to collect elite skills and other PvE contents with a band of henchmen and/or fellow team members, a very versatile build to confront nearly every situation with confidence : both campaigns done with this setup after all. ;)
A build to annihilate touchers, healers, nukers and other pests who feel invincible behind their stances and/or skill spams : all is about focus on a soon-to-be-dead target, you're a one-man spike and king of duels.
Dealing damage, health degeneration, interruptions and knockdowns at a fast pace is generally inducing enough panic, change or disruption to change the tide of all those mini-fights we have in Alliance Battles and stop opponents before they reach the limit of a shrine.
Depending on how "soft" is a target, you can chain another kill before recovering health or not : warrior being in general the lowest threat, while mesmers and air elementalists the highest.