Well the context here would be that you’d have 1Barrier-3DPS-2Heal, where 1 of the DPS could optionally go OffTank.
But usually it would be SoloBarrierTank.
With no possibility of DoubleBarrierTank.
✅ Modified 1-3-2 that can be 1-1-2-2
Which leaves open the potential to buff BarrierTanks as much as is needed to make them more popular.