A WeakAura to show the secondpowers (Combo Points, Soul Shards, Chi, Holy Power, Arcane Charges) of linked classes.
Default power colors are taken from https://wow.gamepedia.com/Power_colors.
Colors of the bar can be configured in the Custom Options Tab.
It is possible to import https://wago.io/B1fxKCKa7 to display your second powers at your targets nameplate.
After importing the aura go to the groups Group tab und "Position Settings" select "Select Frame" form the "Anchored To" Dropdown Menu. Now input "WeakAuras:Nameplate Point Anchor" into the "Frame" input field.