This swirling red potion gives off a dim glow and smells of angry memories.
Taking the potion and declaring a target will give the user tunnel vision on that target, no one else on the battlefield will matter and they will only think of taking down said target.

For 3 turns the user will have advantage on attack rolls against the target, and if they hit it will add +7 to the damage roll.
The user may not attack anyone else during this time, and anyone else that attacks the users will have advantage attacking them.

Any saves or checks against anything other than an attack or spell cast by the target will be done at disadvantage as well.

When crafting this concoction, it must be done in the exact same vial.
The ingredients are simple and can be found anywhere, but the vial is what gives it the magical effect.