API UnitClassification

Returns the classification of the specified unit (e.g., "elite" or "worldboss").
 classification = UnitClassification(unit)
==Arguments==
:;unit: : UnitId
==Returns==
:;classification: - the unit's classification: "worldboss", "rareelite", "elite", "rare", "normal", "trivial", or "minus"
Note that "trivial" is for low-level targets that would not reward experience or honor (() would return '1'), whereas "minus" is for mobs that show a miniature version of the v-key health plates.
==Example==
 if ( UnitClassification("target") == "worldboss" ) then
 -- If unit is a world boss show skull regardless of level
 TargetLevelText:Hide();
 TargetHighLevelTexture:Show();
 end
Result
: If the target is a world boss, then the level isn't shown in the target frame, instead a special high level texture is shown.
==Patch changes==