The key to winning as a Protoss player is our ability to counter the units that the enemy throws at us.
In this article we will look at the immortal and discover just how powerful they can be in the right situations.
I will show you when to use immortals and when to stay away from them.
Immortals have two unique things about them that we need to understand before we go any further.
The first is that the immortal has a special shield that will only allow it to take 10 damage and anything over 10 will be deflected.
The second is the immortal's huge bonus damage to armored units.
When you combine these two things together you get a unit that is perfect for killing large units such as thors or ultralisks.
However the immortal will die quickly to groups of smaller units such as marines or zerglings.
So when you playing against a Terran player you would use immortals if you see a lot of thors or tanks.
But don't make any immortals if the Terran player is using a lot of marines and marauders.
Now when you are playing Zerg there is something that most Zerg players don't realize but roaches are an armored unit and they do a slow attack of 16 damage, which means they take massive damage from immortals and 6 points of their attacks on immortals will be deflected.
So to sum it up, immortals will simply dominate roaches and do very well against hydralisks as well as ultralisks.
However, zerglings take immortals out pretty fast so watch out for that and use colossus to handle the zerglings instead of immortals.
So now you can see and understand why the immortal is such a useful unit in certain situations and should never be left out of your build order.