The Medusa

[Morax]

Not to mention their stun on percivals is absolutely critical if you intend to win a fight against them with bricks

I thought Medusa can only stun T1 and T2 units?

Hmm maybe I'm thinking of Aeon t1 bomber stunning units that are t3 but will sandbox when I'm home to confirm. I think they do, though.

[keyser]

only cybran nuke and loya emp (not talking of Black Ops unit though) can stun T3 unit/exp/ACU.
cybran T2 transport only stun T1/T2
medusa stun T1/T2
aeon bomber stun T1/T2

[Morax]

mehhhhhhhhhhh

Well, they good against t2 spam pillars so THERE