#0 - Oct. 18, 2010, 8:17 p.m.
Rebuffing, debuff removal or battle-ressing during phase transitions or inbetween pulls will all have a significant impact on a druid's threat generation. It somewhat echoes of the 3.x Resto Druid, who felt similarly punished for leaving Tree Form for any reason.
I would prefer if Vengeance was merely suppressed like Dash, instead of outright removed.