A good setup on magplar for vBRP is 5 Julianos, 5 Burning Spellweave, 2 Iceheart with a vMA inferno. This will give you the maximum survivability and aoe dps and its not dependent on anything but having an inferno staff for your blockade of fire. Frontbar puncturing sweeps, radiant glory, channeled acceleration or rune focus, Solar Barrage, inner light, shooting star. Backbar Blazing spear, reflective light, blockade of fire, structured entropy, inner light, elemental rage. (Entropy and channeled acceleration are flex spots). Use an easy rotation like this https://youtu.be/Ozw6Yd8xiKI during difficult mechanics to maintain high dps.