I understand the Warden is in an OP state because of the Light DoT's and Survivability but this bug has been annoying the hell out of me for a few months now, I have bugged it twice now but I believe they have no intention on fixing this anytime soon because of the work being done with server transfers.
Fist-Spear gambits do not stack with multiple Wardens.
Several times when I have been in a group with another Warden I have noticed that I use a Spear of Virtue which ticks for 7k every 4 seconds for 28 seconds just for the other Warden to overwrite that DoT with a Spear of virtue that ticks for 3k every 4 seconds for 16 seconds which is a massive annoyance because the same happens to Piercing strike and Precise blow, this is obviously not WAI and makes me not want to group with PUG Wardens just incase they overwrite what is about 1/3 of my DPS which makes bosses die a lot slower than what they should.
Here is a test I did today showing how it overwrites the DoTs by multiboxing with my girlfriends Warden and making sure she has 60k physical mastery to show how it makes the DoT weaker.
I understand if this was WAI for PvMP but it shouldn't be for PvE, even though the Fist-Spear line is Over powered I shouldn't have to say to Wardens to not use Spear of virtue and Piercing strike incase they don't have 80k Physical mastery and 28 or 36 second long DoTs or it will cut down the groups DPS.