function(event, _, message, _, sourceGUID, sourceName, _, _, destGUID, destName, _, _, spellId)
    if message == "SPELL_AURA_APPLIED" and spellId == 230139 then
        local t = GetTime()
        if t-aura_env.prev > 5 then
            wipe(aura_env.shots)
            wipe(aura_env.soaker)
            aura_env.myPos = nil
            aura_env.prev = t
        end


        aura_env.shots[#aura_env.shots+1] = destName

        if #aura_env.shots == aura_env.getNumberOfShotsForDifficulty() then
            WeakAuras.ScanEvents('WA_SdP_HydraShot')
        end
    end
    if event == "WA_SdP_HydraShot" then
        local _, _, _, instanceId = _G["Unit".."Position"]("player")

        aura_env.myPos = nil
        for i=1,30 do
            local unit = ("raid%d"):format(i)
            local _, _, _, tarInstanceId = _G["Unit".."Position"](unit)

            if tarInstanceId == instanceId
            and UnitIsConnected(unit)
            and not GetPartyAssignment("MAINTANK", unit)
            and UnitGroupRolesAssigned(unit) ~= "TANK"
            and not UnitDebuff(unit, aura_env.buff)
            and not UnitDebuff(unit, aura_env.debuff)
            and not UnitIsDead(unit) then
                local pos = (#aura_env.soaker+1)%aura_env.getNumberOfShotsForDifficulty() + 1
                aura_env.soaker[#aura_env.soaker+1] = {name = UnitName(unit), pos = pos}

                if UnitIsUnit(unit, "player") then
                    aura_env.myPos = pos
                    SendChatMessage("im soaking {rt" .. aura_env.myPos .. "}", "WHISPER", nil, "raid leader name here")
                end
            end
        end

        WeakAuras.ScanEvents('WA_SdP_HydraList', aura_env.shots, aura_env.soaker)

        if aura_env.myPos then
            PlaySoundFile(("interface/sounds/soak_rt%d.ogg"):format(aura_env.myPos), "MASTER")
            return true
        end
    end
end