2-3

2-3 starts off in an area that looks like a coastal area. You will have to deal with a lot of enemies all at once, so prepare yourself. (Be warned: When large groups of Pale Swarmers get together, they could permanently trap you if you're a Crab Berserker depending on your build.)

Enemies: Vile Screecher, Nest, Hydrolisk, Pale Runner, Pale Swarmer, Pale Berserker

Right from the start, you will run into Vile Screechers. They seem like flying enemies, but melee heroes can still hit them. When one dies, the other nearby ones will run away for a couple seconds before returning to attacking you. An easy way to kill them is using attacks with a wide radius. You will also run into a Nest, which will infinitely spawn Vile Screechers. Kill them quickly. You will then run into some Hydrolisks and burrowed Pale Runners.

A ramp up ahead will have 2 Pale Swarmers ahead making Spawns. You will then find a brazier along with a waterfall (remember that waterfall when you get to the end of this ;). This is one of three braziers you have to light in order to continue to 2-4. When you light this one, 5 Pale Swarmers will spawn around you. Be ready to use any attacks with wide radius.

Down another ramp is some Hydrolisks, Pale Runners, and then some Nests. One Nest will be unable to be reached by melee heroes. Get some ranged attacks ready. After this Nest, you have 2 ways to go, both lead to braziers (be ready for a Hydrolisk attack here though!).

SECRET: Along one way, there is an "inconspicuous tree" which can only be hit with ranged attacks. If you manage to kill it, a ring of either strength, dexterity, or intelligence will spawn where it is, and a bridge will appear over to it. (Click on the Inconspicuous Tree to make it targetable).

One way leads to a brazier surrounded by 3 Nests, and has a Hydrolisk attack along the way. Be prepared to kill them all once they show up. The Vile Screechers don't do too much damage, so try to kill the Nests first, then wipe them out. Once you light the brazier, another Hydrolisk ambush happens.

The other way leads to a couple Hydrolisks, Pale Runners, and Pale Swarmers. There will be a ramp leading up to a Nest and the brazier. Kill the nest, light the brazier. If this is not your final one, a couple Pale Swarmers will spawn. If this is the third brazier lit, 3 Pale Berserkers will spawn, each at one of the braziers. Try to keep them separate so you don't have to worry about the damage. Once all 3 are dead, you can proceed to 2-4, which can be accessed by a bridge leading into the waterfall (told you ;).

Beyond Mode

More Hydralisks spawn from the ambushes.