Truer Strike

You point a finger at a target in range. Your magic grants you a brief insight into the target's defenses. You can choose one of the following effects:

• You gain advantage on the target for your next attack roll. Upon selecting this option, the spell uses your bonus action instead, and you are still able to cast a spell this turn.

• Your Dm reveals one random weakpoint of your target:
• If the target is a creature, and is aware of your presence, It makes a wisdom saving throw. If it fails, one of its weakpoint gets revealed. 
• If the target is a simple structure, you can tell if it has a damaged part or weakpoint. 

Attack rolls against the weakpoint are at advantage until the start of your next turn. Specifying the weakpoint as a target, is no longer at disadvantage.