[Classic] Hard Personal Goals?

[Acidburning]

Duration and cooldown of soulstones is 15 minutes. There was no limit on how often a character could be soulstoned outside of the cooldown on each warlocks soulstone. Using a soulstone required a hard cast though so you'd have to be careful not to be interrupted on the casting warlock.

Once you're geared enough that your priest doesn't need to be full holy spec anymore you can even hybrid shadow enough for shadow weaving and just spam rank 1 shadow word: pain between heals to keep up a further 15% shadow debuff.

10% curse of shadow
20% from imp. shadow bolt
15% from demonic sacrifice or 10% from shadow mastery depending if you spec DS/Ruin or SM/Ruin.
15% from shadow weaving
55/60% shadow damage.

Though you'd really want a paladin or shaman in your group at this point for threat reduction because the threat from shadowbolt is pretty nuts.

I've cleared all vanilla dungeons using this group. Sometimes managing pet tanks is a bit of a pain but it's definitely viable and it's also a solid PvP group.

What about LBRS and UBRS? Could you do 4locks and priest? 5man only?

[Apatheist]

What about LBRS and UBRS? Could you do 4locks and priest? 5man only?

Doable but my priest was nearly BiS. In dungeon level gear your healer might run out of mana on Drakkisath or Rend. Everything else is manageable. UBRS is really designed to be a 10man entry level raid experience in vanilla so I don't think of it as a "dungeon." If you pug a hunter to kite Drakkisath it's easily doable.