Foci(X). This item helps the caster focus and increase their ability to cast spells. When you cast a spell, you can increase the level of the spell being cast by using some or all of the item's Focus Pool, as long as you can cast a spell of that level. The item has a Focus Pool equal to the number shown. This pool is automatically be refreshed after a long rest.
Warding. As a reaction, you can expend a spell slot to create a ward of arcane energy. All attacks against you are made with disadvantage, and any damage taken is reduced by the spell level expended. This effect lasts until the start of your next turn, or for a number of attacks and/or damage instances equal to the spell level expended, whichever comes first. An armor's Focus Pool can also be used to activate this ability.
Phenancian weapons use the same base stats as regular weapons, though they are visually covered in runes and mathematical equations. The following properties are only available to phenancian weapons and increase the cost of the base weapon by 1500 each.
Runic. Whenever you land a critical hit with this weapon, you regain one spell slot of a lower level then the highest level you can cast. A spell slot restored this way can never be higher than 5th level.
Moot. When you hit a creature with this weapon, you can expend a spell slot to drain the enemy of spell slots equal to the spell level expended + your proficiency bonus. An armor's Focus Pool can also be used to activate this ability.
Potent. Whenever you deal damage with a spell, until the end of your next turn, your next attack with this weapon has advantage on the damage roll. Whenever you deal damage with this weapon, until the end of your next turn, your next spell that deals damage has advantage on its damage roll.