Pugna has 2 Attacks

Interesting Fact of the Week

Pugna has two different attacks. He has his normal one, and then he has a magical one. The magical one only appears when he attacks a decrepified hero. Thats right. Pugna can attack decrepified heroes.

You may be saying that "clearly he can't because I've tried to when I decrepified a hero." Actually the reason why you couldn't is because you weren't carrying an orb of slow based item. In other words, Pugna needs to carry one of the following : Skadi, Mjollnir, Maelstrom, Desolator, Sange and Yasha. If he has one of these items, he can attack someone in decreped form.

However, Pugna will NOT do any physical damage to the unit when they're decrepified.

So is this effective in any way?

Well yes and no.
Yes being that if you have Skadi you will still slow them. If you have Mjollnir or Maelstrom you can still cast chain lightning on them. If you have deso you will still subtract armor from them. And if you have sange you can still maim.
No being that this strategy is not very effective. There are still better items to get than the ones mentioned above for Pugna. This is not meant to be a guide, but just an interesting fact.

In my opinion, Mjollnir works the best with this tactic. Get some attack speed and sit back and laugh. But please don't get this in high level games -.-.