What are the list of things that were in classic but not in P99?

[Razdeline]

All undead had social aggro. I fondly remember this from training spectres to the docks.

Mobs do not run fast enough when low health, a snarer in Seb or Chardok, for example, were basically required. I really find this important, because it was a game mechanic that entertained suspense.

(I played a little on EQmac, and mobs were running correctly there if you need a reference)

The bard mob 30 yards out (once zoned into highkeep), always dropped a lute.

Bolt spells were brighter and did not look like a glowing black stone shooting through the air.

Certain caster mobs throughout Kunark cast a larger array of spells in comparison to what they are doing now. I remember mobs casting root more often in Sebilis. (not sure if this was just exclusive to here)