Aspects of the Biting Blade:

    Sharp Fang:          𝔐𝔶 𝔠𝔥𝔦𝔩𝔡, 𝔱𝔥𝔲𝔰 𝔦 𝔠𝔬𝔪𝔪𝔞𝔫𝔡 𝔱𝔥𝔢𝔢: ℜ𝔢𝔫𝔡 𝔞𝔫𝔶 𝔰𝔥𝔢𝔩𝔱𝔢𝔯,
    Level 0:    Ignore all vulnerabilities and immunities.
    Level 1:    Damage dealt with this weapon/implement can not be reduced (for 
                example by succeeding on a saving throw, or defensive abilities).
    Level 2:    Reduce targets max HP when dealing damage. (lasts until short rest)
    Level 3:    Prevents any kind of resurrection on a target killed by this blade.
    

    Living Wing:             𝔖𝔱𝔯𝔦𝔨𝔢 𝔰𝔴𝔦𝔣𝔱𝔩𝔶, 𝔩𝔢𝔞𝔳𝔢 𝔫𝔬 𝔱𝔦𝔪𝔢 𝔣𝔬𝔯 𝔢𝔰𝔠𝔞𝔭𝔢,
    Level 0:    Finess
    Level 1:    Count as wielding two weapons for the purpose of two weapon fighting.
                Can be drawn, sheathed and stowed as free actions.
    Level 2:    Attacks of opportunity made with this blade no longer consumes 
                your reaction
    Level 3:    No reaction can interrupt or otherwise negatively affect an
                attack made with this weapon, or a spell cast through it. 
                (no counterspell, shield, parry…)
    
    
    Singing Heart:            𝔈𝔪𝔟𝔯𝔞𝔠𝔢 𝔱𝔥𝔢 𝔪𝔲𝔰𝔦𝔠, 𝔡𝔞𝔫𝔠𝔢 𝔱𝔬 𝔦𝔱𝔰 𝔯𝔥𝔶𝔱𝔥𝔪,
    Level 0:    +1 magic modifier.
    Level 1:    +2 magic modifier.
    Level 2:    +3 magic modifier.
    Level 3:    Increase the number of concentrations you can have at once by 1.
    

    Unyielding Wrath:          𝔄𝔫𝔡 𝔤𝔬 𝔣𝔬𝔯𝔱𝔥, 𝔞𝔫𝔡 𝔡𝔢𝔰𝔱𝔯𝔬𝔶 𝔴𝔦𝔱𝔥𝔬𝔲𝔱 𝔪𝔢𝔯𝔠𝔶.
    Level 0:    advantage against targets that has targeted you since the end of
                your last turn.
    Level 1:    Reroll any number of damage dice once and use the new result.
    Level 2:    Crit on natural 20s and 19s .
    Level 3:    Get an additional action on your turn that you can use to attack
                with this blade, or cast a spell through this blade.