passing the mouse does a "fairly" good job of getting the trees out - aiming them is harder though

I've tested it with keyclone, and apart from some delay, it is possible to at least drop the trees somewhat in front of you - add 15 voodoo gnomes or servants and you have some rather decent fear protection (if they are all within fear range, then your 5 toons are less likely to be the ones feared, when a total of 35 targets can be picked)

Also, if you get to start from stealth, then 5*starfire+moonfire+insectswarm -> wrathspam hurts a priest like there is no tomorrow. Surviving the initial onslaught is damn near impossible, especially if you get to set CC targets and open with cyclone/roots instead.

popping trees+starfall * 5 right after, and just burn another target, should really give you the upper hand - if not, hotting up might give you a chance to outlast - but then again, who knows how it will all look @ lvl 80