General Discussionhero idea (lul)

i was bored so i made this concept of a thief character. seemsgood huh? valve should hire me.

so anyway, here is it, THE THIEF! (still havent thought of a good name)

Q - Steal Weapon
Thief attempts to steals the target's weapon, disarming him/her and temporarily gaining their attack range and base damage on a successful theft. Gains Confidence for every successful theft, but loses Confidence for every failed theft.
Disarm Duration: 4/5/6/7
Buff Duration: 6/8/10/12
Manacost: 50
Cast Range: 150 (melee)
Chance: 35%/40%/45%/50%
Cooldown: 21/18/15/12
W - Faulty Warp
Thief warps in a short distance, dealing magical damage around the area upon landing. After a short time, Thief goes back to the point he Warped from. Memory Theft's channeling is not cancelled by this ability's send back (cancels upon usage obviously)
Distance: 700/700/800/800
Damage: 80/160/240/320
AoE: 300
Manacost: 80/70/60/50
Cooldown: 12/11/10/9
Send Back Delay: 2 seconds
E - Confidence
Gains permanent bonus damage and movement/attack speed stacks for every successful theft done with Steal Weapon and Memory Theft but lose stacks for every failed one. Also increases Steal Weapon's theft rate.
Bonus Damage: 10 per stack
Bonus Attack Speed: 10 per stack
Bonus Movement Speed: 2% per stack
Stack limit: 25
Theft rate increase: 5% per level
R - Memory Theft
!CHANNELING! Steals a target's memories, stunning them during the duration while taking their experience and gold obtained based on how long you channeled. Cannot de-level enemies. Only counts stacks for Confidence if fully channeled. Pierces spell immunity.
Channeling time: 4/5/6 seconds
Experience Drain Rate: 150/185/235
Gold Drain Rate: 150/250/350
Cast Range: 550
Manacost: 200
Cooldown: 160/120/80
(honestly this skill is hard to balance)
Of course i already prepared an ahhs upgrade
Aghanim's Upgrade - Steal Weapon and Memory Theft
Steal weapon can now temporarily steal a target's random item, muting it from their inventory while Thief gains its abilities. Has 100% steal chance, but has no interactions with Confidence (you can't gain stacks if you just stole an item)

Memory Theft can now steal the target's buyback if fully channeled. (honestly i wanted him to steal one random spell but we alr have rubick for that)

OP RIGHT?!