A new champ design by me

This is a champ which I have recently came about, can't think of a good name now, hope I can get some ideas about it

The Noxian Queen

Assassinate: (Passive) Active: Selects an enemy, decrease their magic resist by 20% and increase ability damage dealt to that champion by 30%, last for 10 seconds, the same champion cannot be selected within a minute. Cooldown: 30 sec

Dark Booklet: (Q, 50/60/70/80/90 mana) Throws a poisonous (lol) arrow to an enemy, deals 30/40/50/60/70 damage (+50% Ability Damage) to an anemy and slient them (14/13/12/11/10 seconds)

Two Sided Chain: (W, 60/80/100/120/120 mana) Throws a chain: If it hits an enemy, heals the queen herself by 100 health and deal 50/100/150/200/250 damage to that enemy If it hits an ally, return 200 mana to the queen and heals the ally by 300 health if their health is below 50%, if it is above 50%, grant them invisibility (17/16/15/14/13 seconds)

Shift: (E, 100 mana at all levels) Dash to a direction, if it hits an enemy, return 50 mana and gain a shield (50% of her Ability Power) (20/18/16/14/12 seconds)

Hell Fire: (R, 25% of maximum mana) Stuns all enemy champions for 3.5 seconds, grant allies extra 50% movement speed, disabiling and making all towers invincible for 5 seconds (150/130/100 seconds)

Works Well With: for the w (++) Counters: Laning: Might work well on supp and mid lane or top Champion Type: Assassin? Mage? Item Build: AP? Health? CDR? Blue Build? Spells: (um will anyone use that?)