Chromatic Weapon

You evoke the power of the Great Chromatic Dragons into a weapon made in the image of the Great breath weapons of said Dragons. You pick a type of Dragon and create your weapon (Listed Below). The Weapon counts as a simple melee weapon with which you are proficient. It has the Light property, as well as you can use your spellcasting ability modifier in place of Strength for attack rolls.

Red Dragon: The weapon you summon Deals 3d6 Fire damage, and emits bright light out to 20ft and an additional 20ft of dim light.

Black Dragon: The weapon you create deals 2d8 Acid damage, additional upon hitting a target that is wearing armor, roll a d4 and reduce their AC by that amount for the spells duration, a creature can only be effected by this reduction once per casting of this spell.

White Dragon: The weapon conjured deals 4d4 Cold Damage, additionally the creature struck must make a Constitution Saving throw against your Spell save DC, on failure the creature has their movement speed halved for the duration of the spell.

Blue Dragon: The weapon created deals 1d12 Lightning damage on hit, additionally any creature within 10ft of the creature struck takes 1d12 lightning damage as it arcs through your target. You cannot hit yourself with the lightning Arc

Green Dragon: Your weapon conjured deals 1d10 Poison damage on hit and the creature struck must make a Constitution Saving throw against your Spell save DC, on a failure the creature takes 1d10 Poison damage at the start of each of its turns until the spell ends.