Amulet of Sin

While wearing this amulet, you can use an action and spend 1 charge to cast a variation of the detect thoughts spell (save DC 14) from it. The spell will reveal to you the sin that the target most embodies - wrath, lust, greed, envy, sloth, pride, or gluttony. If a target equally embodies multiple sins, you will receive only 1 and may receive different results from multiple castings. 

While focusing on a creature with detect thoughts, the target has disadvantage on any charm person, charm monster, Otto's Irresistible Dance, hideous laughter, or suggestion spell you cast against them.

This amulet starts with 3 charges and regains 1d4 (max 3) charges at dawn.

Notes: player character, Communication, Detection