Orianna shields J4, combo into the enemy team through the carry; Orianna utlts, then with all enemies pulled at the center J4 ults the enemy ADC.
Shivana ults inside J4 ultimate and tank the team with J4.
Thresh protect the 2 carries and ults who try to focus them, going outside J4's ult.
To be effective, the enemy team must be forced to group close. Then Malphite can initiate, and so Yasuo ult the whole team, and when they come back on the terrain Sona ult and lock them down to allow Yasuo & Varus take the carries. Then Varus ult, locking them again...the carry now should be dead!
Malphite and Cho are the tank, but they have to provide (with sona) AP damage.