I have no clue what spell dat they are using to put it at 1496, but Splurt always did 1600, even at Kunark launch.
Emissary is all kinds of messed up, it launched bugged but was fixed before Velious, same with the Necro epic which originally had a chance to resist each tick (totally a bug).
Should be double and triple attacking often, should also kick. The max melee damage here according to the wiki is wrong, it's should be 61.