Water Spout and Achille's Heel

Does anyone know how the Achille's Heel -res proc behaves in Water Spout? Does it have a chance to proc with each damage tick from the spout or would it even work at all?

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SG: Guadians of Paragon - VG: Paragon's Darkness
The Usual Suspects: Fimboolvetr (Icer Tank), Tsukiyomi (Mind/Psi/Ice Dom), Smiting Dragon (Dm/Sr Scrap), Widow Mortis (NW)
Up and Comers: Ameterasu (Km/Reg Scrap), Arrhymian (Elec/Nin Stalk), TDMKII (Bot/Traps MM)

Since the power the Tornado uses to apply the defense debuff is auto, I would expect it to check once per 10 seconds, like a damage aura or rain power does.

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Having Vengeance and Fallout slotted for recharge means never having to say you're sorry.

I think Kelenar is right.

I haven't tested water spout, but in tornado it seems to only check per 10 seconds not per tick. I assume water spout will be the same.

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"Hmm, I guess I'm not as omniscient as I thought" -Gavin Runeblade.
I can be found, outside of paragon city here.
Thank you everyone at Paragon and on Virtue. When the lights go out in November, you'll find me on Razor Bunny.

Thanks guys. Going to try it out. Even if it's every 10 seconds, that's 3 chances per cast.

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SG: Guadians of Paragon - VG: Paragon's Darkness
The Usual Suspects: Fimboolvetr (Icer Tank), Tsukiyomi (Mind/Psi/Ice Dom), Smiting Dragon (Dm/Sr Scrap), Widow Mortis (NW)
Up and Comers: Ameterasu (Km/Reg Scrap), Arrhymian (Elec/Nin Stalk), TDMKII (Bot/Traps MM)