Bip’s Binding Aura

As a bonus action, you attempt to tap into the aura of another creature you can see within 30 feet of you. The target must succeed on a Wisdom saving throw or have their aura exposed to you.

For the duration of this spell as a bonus action (including the one used to cast the spell), you can attempt to sync your aura with the target. You and the target roll a d20. If the rolled values are the same, any attack rolls you make against the target during this round of combat are automatic critical hits.