Board Thread:General Discussion/@comment-25120551-20140923124820/@comment-24922506-20141006222437

Most of the time your best choice for regular bosses will be something like

Leader: +150% 1st atk --- Support: +30% atk or ElementChanger

However for high level raid bosses (50-99) the +FirstStrike skill is useless, and instead of that you'd like to maximize your survavility with a Barong (1%  FirstAttack) and/or Element changers. And off course never forget your LotD, or any of the other (weaker) time stoppers.

For raid Bosses with annoying counter skills (Meretseger, Bahamut, Zeus) there's little you can do :V

Something like

Leader +15%def --- Support: +15%def + a bunch of tanks may help a little.

Speed and emergency-skills are the weakest supports. However sometimes you can get monster speeds (1400+) with the right team just for fun.