Anglo, the Spearhunter (Champion Concept)

Had an idea for a champ and felt like writing it down. I am by no means good at balancing so I don't have any damage ratios or scaling, just ability concepts.

Anglo the Spearhunter Type- AD Carry

Playstyle: Basic attacks are with a retractable spear gun, with the spear attached to a chain (fairly close range). He’s an anti-assassin ad carry, squishy but able to survive due to cc, stealth, and escapes.

Passive: Ambush Trap- The next enemy champion to deal damage to you will be rooted for 4 seconds. (120 second cooldown).

Q: Slingshot- Fire a chain at an enemy, dealing damage. If your chain hits an enemy champion, it briefly roots the target for 0.5 seconds. You then dash through the enemy champion to an equal distance on the other side, dealing damage to any enemy you pass through (10% less damage every target hit).

W: Escapism (Passive)- Whenever you leave brush, you gain stealth for 2 seconds (15 second cool down). Stealth breaks when dealing damage.

E: Chain Sweeper- Deal AOE damage clockwise in an area around you. If your chain hits terrain, you’re launched a distance parallel with that terrain.

R: Grappling Hook- Fire a chain at an enemy champion. If the chain hits, it deals damage, roots the champion for 0.5 seconds, and launches smaller chains at any other enemy champions within reach. All champions are pulled to the original champion and dealt damage.