So I was trying out my newly leveled Cursed Birman. I teamed it with a Celestial Dragon and when facing a MPD i noticed something I was not expecting. MPD used Decoy and I used Arcane Storm. Arcane Storm is an AoE move that after the patch has had the Avalanche treatment. Still it is an AoE so I expected that two hits would be blocked and the third pet would be hit for its third of the damage. But instead no damage got through and only one decoy stack was removed.
Well that sucked.

So is this a bug or intentional? Are the other Avalanche-type moves interacting with decoy in the same way? If they do, I get the feeling that S/S Sky-Bo would be quite nice MPD counter.