What is the purpose of Dehaka's right arm?

starcraft-2

Talk to him about it?

Except from that, I don't think it would do anything, it is only that, an easter egg. Nice find though.


The right arm is a part of a Easter Egg for the mission before it.

What's up with the Strange Organism in Waking the Ancient? http://i.stack.imgur.com/TCLCO.jpg
Note how its right arm is missing.

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