Hero Concept for Black Cat

I made this purely for fun, but I did wonder if this is actually a decent idea and not a wildly crazy one. Because this was for fun, I didn't add any real numbers (except for the base stats) to the concept (because they always get changed for balance reasons anyway). So, here's my concept for Black Cat! Tell me what you think. Any and all criticisms is accepted, as long as it's constructive. Basically, be nice.

Role: Duelist

Base Stats

• Base Health: 250
• Base Movement Speed: 7 m/s

Abilities

• Passive 1: Cat-crobatics – Black Cat’s natural athleticism is enhanced by her catsuit, granting her an enhanced jump, both in height and distance, and a normal double jump.
• Passive 2: Breaking & Entering – Black Cat uses her retractable claws to climb walls. She also has access to the Cat-crobatics passive ability while clinging to walls.
• Primary Fire (left-click or R2): Retractable Claws – Black Cat repeatedly swipes her razor-sharp claws forward.
• Secondary Fire (right-click or R1): Bullwhip – Black Cat cracks her whip ahead of her for immense burst damage.
• Ability 1: Grappling Hook – Black Cat latches her grappling hook upwards and swings forward with it (like Spider-Man and Venom). This ability starts with three (3) charges that recharge over time.
• Ability 2: Compromising Position – Black Cat launches her whip at an enemy. Upon latching on, she can either Yank or Pounce (left-click or right-click, like Invisible Woman’s Force Physics). Yank makes Black Cat pull the enemy towards her and briefly stun them. Pounce makes Black Cat leap at her target and knock them over. Both deal a significant amount of damage, but Pounce does more.
• Ability 3: Pilfer – Black Cat becomes Quiet (moving and attacking does not make any noise for enemies to hear) and is granted a slight Movement Boost for a brief period. During this time, all basic attacks will not do damage but will steal chunks of their ammunition instead, forcing the enemy to reload if completely depleted. Doing so gives Black Cat ultimate energy to either Give to an ally or Keep for herself (also left-click or right-click). The amount of energy collected is displayed above her head. If an enemy (any enemy, not just the one she stole from) KO’s her before she Gives or Keeps, that player will have a random cooldown ability instantly refreshed.
• Ultimate: Master Thief – Black Cat dashes between enemies in a spherical area around her (think Psylocke’s Dance of the Butterfly) and damages them. On each attack, she steals a lot of ultimate energy from each enemy hit. When the ability ends, the stolen energy is automatically distributed evenly between her allies (she does not get any). Black Cat is immune to all forms of crowd control while this ability is active. If there are any enemies in her range with 100% ultimate charge, they will keep their charge, but their ultimate ability will be Silenced.

Potential Team-Ups

• Team-Up 1: Nine Lives (Doctor Strange) – Doctor Strange unlocks Black Cat’s latent tychokinetic abilities, allowing to stay in the fight for longer. When her health bar reaches 0, instead of being KO’d, a puff of smoke will appear where she is standing. She will instantly regain a small amount of health and become Invincible, Invisible, and Quiet for a brief period. All of her abilities are disabled during this time. She will have nine (9) charges for the entirety of the match (if she uses five lives in the first round, she will have four left in the second), and there is a lengthy cooldown timer between each use. If she is KO’d before the cooldown timer ends, Black Cat will undergo the standard respawn process (like Adam Warlock if his Regenerative Cocoon wasn’t ready). (Strange is the anchor.)
• Team-Up 2: Bad Influence (Spider-Man) – Spider-Man does something he never thought he’d do: help Black Cat steal something. Upon activation, Black Cat’s Bullwhip attack, CP’s Yank, and CP’s Pounce will steal a small amount ammunition from her target. This steal can only be activated for one of these abilities (meaning that they don’t each get to steal). The cooldown timer for Bad Influence won’t start until Black Cat uses Bullwhip, Yank, or Pounce. (Spidey is the anchor.)

I wanted to think of team-ups where Black Cat is the anchor, but I couldn't think of anything. Also, should Nine Lives be with Strange or Wanda? I picked Strange because he's the one who took her luck powers away in the comics, but Wanda's chaos magic can warp reality. If you guys have any ideas, feel free to share.