Statler and Waldorf
Increasing their base tenacity and evasion by 80% does nothing, it will be still always be below the maximum player level let alone be above 100 of it to fully work (at current level 460 tenacity and evasion is required to fully work), and there are heroes which remove tenacity/evasion in huge values too.
Could the team increase the value in their red skill to 800%? Then, their evasion and tenacity buff would work.