Individual Spells(Nikolai Forge)

Name: Hemi Booster
Description: The user summons a dark aura around his/herself, and boosts the Stat of his choice by one full grade for the duration of the battle. For example, if Nikolai wanted to boost his speed, he would change his A+ Strength to a B+ rating, and his speed would go from B, to A Rating.
Strength: The user can boost any one of his stats by one full grade for the duration of the duel.
Weakness: The user is forced to downgrade one other stat by one full grade for the duration of the duel.

Name: Semi Booster
Description: The user summons a dark aura around his/herself, and boosts the Stat of his choice by one half grade for the duration of the battle. For example again, if Nikolai wanted to boost his Senses, he would change his B Rating to a B+ Rating.
Strength: The user can boost any one of his stats by one half grade for the duration of the duel.
Weakness: The user is also forced to downgrade one other stat by one Half Grade for the duration of the duel.

I'm just pointing out that stat grades have been removed.