Psionic Assault, part 1 | Challenges SC II: WoL Guide
Last update: 11 May 2016
Round 1
Enemies: 14 Zerglings
Move the Templar to the cliff and place Sentries in front of the entrance. Once the Zerglings attack, call forth a Psi Storm in front of them. It will weaken them enough for the Sentries to deal with them.
Number of victims: 14
Round 2
Enemies: 10 Marines
Now you will make use of the Sentries and their force field, which you will use to block the Marines from accessing the platform. You can play through the bonus Zergling round the same way.
Place a wall built of three fields below, with a bit of luck, the blocked enemies won't be even able to see what's shooting them (difference of heights). A good idea would be creating something resembling a through from the force fields (check the screen) and wait for it to be filled with enemies. Afterwards call in a Psi Storm and get rid of the survivors with Sentries.
Number of victims: 24
Round 3
Enemies: 4 Hydralisks, 8 Zerglings
Repeat the force fields strategy. Hydralisks are a bit more resistant, but I'd recommend attacking with Sentries instead of calling in another Storm, to save up some energy.
Number of victims: 36
Round 4
Enemies: Marauder, 13 Marines
The same thing one more time. The Marauder will probably survive the storm, but the Sentries' beams will finish the job.
Number of victims: 50
Round 5
Enemies: 1 Roach 8 Banelings, 16 Zerglings
The round which guarantees you a brown medal. Act just like before, but if you're brave enough you might try killing the attacked with just the Sentries, instead of using Psi Storm. Just a little challenge for those more ambitious of you.
To make the future rounds easier, you can sacrifice two Templars (with the least energy) for an Archon and use it in the fight. The further description doesn't include this solution, though such a unit would certainly be very valuable.
Number of victims: 75 (bronze)
Round 6
Enemies: 3 Marauders, 10 Marines
Another Terran attack and the same method of dealing with them again. Marauders are tough, so you'll need two Storms to eliminate them. Finish the job with Sentries, which can be heavily damaged - your choice.
Look out for the next wave. It will require you to quickly move south off the current location.
Number of victims: 88
Round 7
Enemies: 23 Zerglings
A change of sides. Place the Sentries on the extended part of the platform and block the poor Zerglings once again. Shape the barrier properly and create something resembling a recess by the platform. You can then use the High Templar again and call in a Storm or let the Sentries take care of it. The third option is to cast a storm on the path, which will weaken the enemies going along there enough. Afterwards all that's left is shooting them, just like in the 1st round.
Number of victims: 111
Round 8
Enemies: 6 Zealots, 5 Sentries
You will have to deal with the Protosses for the first time. Treat the couple Zealots and Sentries just like the other waves of enemies, that is barricade with a force field and use Psi Storm. After winning, quickly return to the starting location.
Number of victims: 122
Round 9 and 10
Enemies: 10 Reapers (round 9)
Enemies: 6 Reapers (round 10)
I've decided to describe both waves in one, as they happen one after another. The difficulty goes up considerably, so save the game. A mistake or sluggishness may cost you a lot.
You will stop the northern attack just like usual, by stopping the Terran Reapers with a force field and basing on the force of the Psi Storm. I wouldn't recommend using Sentries themselves, as the Reapers need just a few shots to destroy them. Once the second group is on their way, I'd suggest using Hallucination for the first time during the challenge. Choose someone from the upper shelf, like a Colossus and place it exactly like shown in the screen. Note that the Reapers don't need to follow the passage, but will simply jump onto the platform at the first occasion. After the Colossus draws the enemies' attention, get rid of rests of their intellect with a Psi Storm.
Number of victims: 132, 138
Round 11 and 12
Enemies: 6 Hydralisks, 4 Banelings (round 11)
Enemies: 2 Banshee (round 12)
Two more quick challenges, though not as difficult as last time. Get ready for the first attack by going to the salient cape of the platform in the south, once more using the force field on the incoming Zergs. The Sentries will deal with them in case they approach the platform. Don't worry about the Hydralisks, they won't reach your units on the hill.
After a couple seconds two Banshees will show up in the north, which you should destroy using the Templars' Feedback. A certain silver.
Number of victims: 148, 150 (silver)