From a thread that was closed without the issue being addressed:

Since "Silvermane's Head" cannot be added to a force build, could we please have the text of the "Silvermane's Head" special object added to the unit's section under Silvermane?

For reference:

Silvermane's Head

Light Object

EQUIP: Give a friendly character in this square or holding this object a power action to equip it. Opposing characters can KO this object only by using it in an object attack. (To equip, take the object and place it on the standard character's card. The character can use its effects. If the character is KO'd or equipped with a second object, KO the first equipped object.)

EFFECT: This character can use Leadership as if it were 150 points and succeeds on a 4-6. On a result of 1, place this object in an adjacent square.