Bane
In Act 5.2.5 when the Bane Debuff is applied to my champs it reduces 2.5% Of my champions max health over 10 seconds which is what it supposed to do to the defender as well however it only reduces 2.5% of the defenders health in 10 seconds. So example. If my champs have Bane on them at max health they lose 25% of their health over 10 seconds which leaves me with 75% but when applied to the defender they only lose 2.5% of their max health over 10 seconds which leaves them at 97.5%.