Today I just did 251,521 damage with an efreet with three feints, seven blades, some other traps, a collosal, and a critical.
14,000 against my full jade alt using four blades with a critical bull in krokopatra exalted duel... was testing out the beguile cheat after she was done beguiling me for my two turns.
1 million, but we went back and calculated the exact amount using the 26 blades, 21 assorted traps, and 45% Time of Legend bubble and aura and the actual amount would have been closer to 2.5 million, on Grumish Greataxe in the Entrance Hall.
In normal questing, close to half a million on Cronus, in Tartarus
In pvp, about 12k with a King Artorius on a max lvl fire opponent (no, storm does not boost on fire in the arena, sadly )