The strangeness of Absorb Soul

The level 19 Mystic skill, Absorb Soul:
Deals Physical Damage equal to 125% of your Magic
Damage plus xxxx to players. Deals Physical Damage
equal to 200% of your Magic Damage plus xxxx to monsters.
Absorb Soul cannot cause a critical strike.

This skill behaves rather strangely. Several people (me included) have decided that it is most likely a wood attack with 0 initial damage, followed immediately by a single tick of physical "damage over time" damage. This helps to make sense of several oddities about the skill, as you will read below.

Some strange things about the skill include

- Deals no damage to element-immune mobs (such as KunKun) even though it is specified as physical damage

- It has been tested and confirmed that wood immune bosses resist the spell as well. Whether or not the skill counts as specifically wood element when determining immunities has yet to be seen.

- Deals full damage through damage absorb skills (such as Aegis Sphere, Winged Shell, Wings of Protection, etc)

- Deals damage against Psychic Will (again, even though it's specified as physical damage)

- Deals full damage through damage-reduction skills (such as Invoke, Bramble Hood, Wings of Grace, etc)

- Does not show up in the damage log

- Deals full damage through a Cleric's Plume Shell (again, physical damage) and takes no MP from the cleric

- When used on mobs, sometimes the mob will simply fade away (like when a veno tames them) instead of going through their usual death animation

- Damage is unaffected by the Mystic's attack levels

- Deals damage through the Invincible buff (Spark, Feral Concentration, Absolute Domain, etc) in duels, works normally in open-PK

- Suffers no damage reduction when attacking from Air -> Ground

- Does not activate a Psychic's Soul of Retaliation, Soul of Stunning, or Soul of Vengeance

- Ignores opponent's defense levels

- Has almost 0 aggro-pulling capability (Probably the only time you'll aggro a mob with Absorb Soul is if it hasn't been hit yet)

- Results in no lost durability on weapon

- Consumes no magic attack utility charms

- Certain mobs/bosses will resist the skill entirely (even if they have no element immunity)

- Many bosses, and certain elite mobs, will resist the Nature's Vengeance amp (not necessarily something strange about AS, but still nerfs the damage of the skill). I'm going to go ahead and assume, since the amp also has a slow effect, that any enemy that can't be slowed, can't be amped.

- Does not break sleep

These are just the oddities that I have personally tested. If anyone else knows of any other interesting things that occur with this skill, please post them and I will add them to the list. Thank you.

PS: These PvP-related "glitches" were discovered while dueling. And it has been brought to my attention that some of these skills/items may work differently under open-world PK. If anyone reading this thread has a Mystic in PK mode and could test some of these to confirm/deny that they work in dueling and PK, that would be great, thank you.

Stolen from: http://pwi-forum.perfectworld.com/showthread.php?t=1018921