what is a good lvl to do this instance? whats the minimum lvl?

It was a surprise when I encountered the boss in the Hall of Stasis the first time I ran it on heroic. My group just pulled like it was trash and it took me a moment to realize he was kinda special.

For alliance, it's Commander Kolrug.
For horde, it's Commander Stoutbeard.

It seems their abilities are the same?

6 sec AoE fear
Whirlwind that one-shotted my priest near the end of the fight, which wasn't so bad due to SoR and a ret pally.
Charge that deals about 10k damage

The boss has 2 healers with him, kinda like the first boss in Hellfire Ramparts. Kill or CC the adds first, they'll heal the boss and eachother.

He does drop an Emblem of Heroism.

This site has a good guide for The Nexus, and other 5-man instances and raid bosses.

The Nexus is a pretty neat instance the first time you see it. It is located in Coldarra - a far western island in the Borean Tundra. You can get there via a Flight Path from Amber Ledge. Talk to the dragon there, and the Coldarra FP will appear. Fly there, and head into the Nexus.

My first time here, it seemed like a maze. However, after figuring it out, it's really pretty straight forward. It just seemed like a maze because everything connects. Just remember - the exit/entrance is south. As long as you are heading south, you will eventually find your way out.

OK, this instance has 4 total bosses. You have to kill the first 3 before you can take on the final boss. Of course, as a teaser, the final boss is frozen in ice right by the entrance. So you get to see the dragon, but you can't fight it yet.

If you head east, you reach the frozen area. The only thing to note here is that the little non-elite flowers that keep attacking you will ressurect every so often. So you have to keep on moving. Healers and ranged DPS should be aware. Often times, in the middle of a fight, you can start getting nipped on by these mobs from behind. If that happens, just run toward the tank so they can get aggro off you. Once you kill the boss in here, the annoying little flowers will stop resurrecting.

Boss - Ormorok the Tree-Shaper. He looks like the second boss from Mana Tombs (you can also mine him for ore and a gem when he's dead)
- Basic tank and spank
- Crystal Spikes - He will send waves of crystal spikes along the ground all over the place. After about 2 seconds, they will turn into giant spikes and launch you. You'll take a ton of damage if you get hit. So if you see the spikes near you or under you - MOVE!! There is no reason to take any damage from this.
- Spell Reflect - Casters beware. You will see him cast this, and should stop casting spells at him when this buff is up (obviously).
- Ranged and healers - beware of resurrecting flower thingys. If you are hanging out too close to ramp to boss, they may start nipping at your butt. The best bet is to move well inside the boss area.

Now, you can start heading north toward next boss. This next area is the rift. Lots of Mana Wraiths and dragonkin. Whenever a group has a Rift in it (looks like a large spark), make sure to kill it first. It will summon more mobs. Once you are into area, go onto platforms to the east. This is where the boss is. If you head to platforms on the west, then you will miss the boss.

Boss - Anomalus. Giant ethereal light humanoid shaped thing.
- He will summon adds at 75%, 50%, and 25% health. When summoning adds, he will become immune to all attacks. So focus 100% on adds at that point.
- Not much else to note here. Just remember that EVERYONE should focus on killing adds until they are all dead. Then, back to boss.

OK, now you can head to west area. Mostly humanoids here. There is not much to note here other than the neat section where the mobs are frozen in ice. They break from ice in groups, so you don't have to worry about aggroing the entire area (unless you want to) :).

Boss - Grand Magus Telestra - she is probably the most annoying boss.
- Phase 1 - stay spread out. She will cast some AoE damage.
- Also, she will cast Gravity Well. It is more like the tentacles from the last boss in Underbog. You get lauched all over the place while taking a DoT. However, you can still use instant casts.
- Phase 2 - 50% Health - she vanishes, and 3 clones appear. Fire Magus (single target damage), Frost Magus (AoE Damage), and Arcane Magus (Time Stop and Poly). The clones can be CC'd if needed. Kill them in any order, depending on group makeup.
- Phase 3 - boss reappears. Burn her down.

Yay - first 3 bosses are down. Now, you can go take out dragon boss at beginning (remember, head south from any location, and it will take you there).

Click on all the orbs around boss to start fight.

Boss - Keristrasza (The Russian Dragon) :P
- Most important note - you must keep moving. For casters, this means cast your spell, and take a step or two to the side before your next cast.
- Boss has tail sweep and front cone-shaped AoE. This means that melee DPS need to hit dragon from sides to avoid all other damage. Tank will obviously be in front.
- As long as you keep on moving, this is a pretty easy fight. If you don't, then you've made your healer work 2x as hard as necessary.

Congrats. You just finished instance.

Head directly south to leave instance (for those of you who may have gotten turned around).

Edited, Nov 17th 2008 2:23pm by YJMark