Starcraft II guide - terran strategy to starcraft2
StarCraft 2 - Guide to Battle Craft
Now let us see what units and unit combos are a counter to others. Remember - your job is to counter units by sending against them units of a lesser price so you can have more minerals then your opponent does for a final deadly strike.
Starcraft 2 guide Zerglings. Pretty ofthen you can see someone sending zerglings against you. You should pay attention on how many stacks of units your opponent is sending against you. If there's just a one stack of zerglings the best way to deal with them is send a stack of zealots against them. If the opponent sends against you multiple stacks of zerglings you should consider counter them using Hellions (against 2 or 3 stack of zerglings) or Colossus (against up to 5 stacks)
Zealots. Now zealots are pretty strong against lite ground units (marines, zerglings, Hydralisk), but weak against armored types of units. If there's just one stack of zealots you are probably better to go with Banelings. If there's more the one stack of Zealots you should also chose Colossus.
Banelings. This one is pretty tough if you don't consider Roaches as a counter. You can also use Colossus for beeng a very good anti-light-ground unit, but if number of Banelings is significant you'll eventually get all your Colossus blown up with more Banelings rolling towards your Pilon (or Life Crystal as they call it)
Mutalisk. Mass Mutalisk attack may be hard to overcome if you don't know what's best counter against them. And the best counter is Archon with their strong aoe attack. Ultralisk. Mass Ultralisk may be scary. No point trying to counter em with air units as high armored Ultralisks will just run through and stomp your Pilon. The best way to counter Mass Ultralisk are Immortals. level 2 Zealots, Immortals and level 2 Ghosts. Be quick and build units in a right order which is the following:
1 stack of level 2 Zealots (they will stomp all the zerglings and marines that are good against Immortals)
1 stack of level 2 Immortals (they'll tank ultralisks and Archons - ghosts toughest nemesis)
2 stacks of level 2 Ghosts. Just send em wave after wave until your opponent loses his pilon. Zerglings are needed to take damage that would otherwise be dealt to your main group of zealots+immortals+ghosts.
Battlecruisers and Thors. This comp is pretty simple - as you gain 2000 minerals spend em all for 2 stacks of battlecruisers and a stack of thors (since battlecruisers and thors cost 600 minerals per stack).
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