Blastflower (meta)by PaladinsAcademy
This build focuses on sustain to keep you alive against enemy flanks and damages, so that you can continue to do your job (zoning out areas, pressuring tanks, farming Ult charge). You can use Just Believe III instead of Twilight III if you want to.
Items: Wrecker against shields. Haven against Hitscans. Cauterize if you don't need the other 2. Resilience is good if you need it. Morale Boost is good if you don't need these other items.