Strategy Theory: 5x Bond of Stone.

So, let's say we have a team of: top: Maokai with Bond of Stone. jungle: Hecarim with Bond of Stone. mid: Swain with Bond of Stone. adc: Kogmaw with Bond of Stone. Support: Sona with Bond of Stone.

If the enemy team was focusing one target(let's say Hecarim), does this mean that Hecarim will get 48% damage reduction?! (assuming he is in maokai's ult, and 28% while outside of it).

p.s. I know that Bond of Stone makes you take 6% of the damage, that's why I picked high sustain champs (maokai, swain, hecarim, KogMaw, and Sona).