Double Team might not be working as intended

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As the title says;DT might not be working correctly.

I was battling the boss "Steven" and at first i flashed his "Armaldo" 6 times,which lowers its accurcy to %33 percent if im not mistaken.Also i paralyzed his "Armaldo" at the mean time.Then i switched into my ninjask and started using double team with it,in the every single time i did this,after my 3rd Double Team it would still be able to connect a move and kill me.To be precise the move was "Rock Blast".3x Double Team should increase my ninjasks evasion to %50. So the chance of a move to connect to my ninjask at this point is %1.65.However whenever i came to the 3rd Double Team the move would hit and kill my ninjask.This happened to me back to back 3 times. So the chance of this happening is very slim(0.55%) if im not mistaken.After this incident i wanted to make sure if Double Team is working correctly,it would be great if any of the devs could check this out.Thanks in advance.