A team composition my friend keeps proposing

Can people who are better at the game than we are tell us how this would work?

A friend who I regularly play with has the idea of running a double-support composition with a Gul’dan. He says that the high healing output would allow Gul’dan to consistently abuse his life-tap, and be able to crank out much more damage as a result. Could this be a viable strategy?

Auriel + Rehgar or smth maybe. Also depends on the map. Or morales/smth.

Depends on how well you manage to prolong fights without losing anyone or losing another lane.