Did you know about this? it doesnt only reduce dodge!
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btw if its not what youre talking about, Ive done some tests
 

damage without any upgrade
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damage with dodge and death, no other
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damage with dodge and death and time bomb, no other
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damage with dodge and death and countdown of death, no other
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so, what are you talking about? there hasnt been any changes. time bomb explodes when clock expires though, its stated on the upgrade.