The other day I got bored and decided to go to westfall with two hunter friends of mine.
Most people know that if you attack the Gryphon master then Feign death (or die) every time he spawns two more gryphon's.
The problem is that you either have to have a lot of people to attack and die/feign to get enough to really matter because each set despawns about 3 minutes after it was spawned. (maybe a little longer).
The exploit here: If you take a hunters Aoe Fire trap and set it under the gryphon's master, then IMMEDIATELY feign death and wait. Each tick will spawn multiple gryphon's. So one trap can get you a good 30-40 more gryphon's, and you can have 2 hunters or more doing this at a time.
We had so many at one point (and we weren't really even trying) that it took 5 seconds between casting an aoe on them, and see'ing the effect because of the server lag.
This is the spawns from ONE TRAP.
Me about to die after laying a few traps.