Power of fate

You pray to the Lord of Fate to grant your wappon greater strength.

Roll a D4 to determine the effect of the blessing.

If your roll a 1: The Lord of Fate grants your weapon a blessing of fire. For the duration every attack with the weapon deals additinal 2d6 + your charisma modifier fire damage to the target and causes the target to ignite in flames. At the start of each of its turns until the spell ends, the target must make a Constitution saving throw. On a failed save, it takes 1d6 fire damage. On a successful save does the target extinguish the flames. If the target or a creature within 5 feet of it uses an action to put out the flames, or if some other effect douses the flames (such as the target being submerged in water), the flames also extinguish.

If your roll a 2: The Lord of Fate grants your weapon a blessing of radiance. For the duration your weapon sheds dim light in a 15-foot and every attack with the weapon deals additional 2d6 + your charisma modifier radiance damage. The light also soothes your allies and your wounds. Every friendly creature, who at the end of its turn is within the 15-foot radius get healed for 1d4 + your charisma modefier. The magical light lets invisible enemies in range casts shadows nullifying their condition advantage when targeted by an attack.

If your roll a 3: The Lord of Fate grants your weapon a blessing of thunder. For the duration every attack with your weapon deals additional 2d6 + your charisma modifier thunder damage. The target must make a constitution saving throw. If it fails it gets paralyzed until the start of its 2. turn.

If your roll a 4: The Lord of Fate grants your weapon a blessing of psychic. For the duration every attack with your weapon deals additional 2d6 + your charisma modifier psychic damage. The target must make a Wisdom saving throw. On a failed save, it gets stunned, until the end of its next turn. 

If you use this spell as a 5th class spell add 1d6 dice to the initial damage rolls (2d6-->3d6) and increase the possible healing to 2d4 + your charisma modefier