Update of Salokz' original class buff Weakauras.
Shows a clickable flashing icon if you or someone in your group/raid is missing a buff you can cast (and is in 100 yard range from you), icon will cast the relevant buff. Battle Shout icon also shows remaining duration if on CD.
Buffs included: Arcane Intellect, Battle Shout, Blessing of the Bronze, Mark of the Wild, Power Word: Fortitude
Checks for the buff on frequent events (like UNIT_AURA or PLAYER_TARGET_CHANGED) instead of every frame for lower CPU usage.