Assassin Reworks: Talon OP or NOT OP?

So as the new assassin reworks roll out we have all surely seen by now most - if not all of the new assassins, In this thread we will be discussing Talon, The Assassins Creed wannabe. So without the mention of his passive, he is an okay champion. Currently he is being played at mid, top, and the jungle. Arguably he isn't very strong but he can do a lot of damage, as any assassin can. These champions thrive at picking people off and are generally bad at team fighting. These champions generally fall off in the later phases of the game as all they offer is damage, but a champion like Katarina or Yi can both thrive in theory due to the reset mechanics that they have. Talon has none of these, he is a champion that is made to snowball early - with high bonus damage ratios and decent base damages, but not enough to do lethal onto an enemy champion until level 4 - 6. This is why he is played in the jungle, with added damage from red buff and an enemy champion who is maybe half hp or so from trading he should be able to pick up a kill, once he gets ahead, his damage in the early game will skyrocket but fall off late as it has no % damage ratios and only high BONUS ad ratios. As a champion that has relatively little mobility in a lane his kit revolves around roaming with his e and his ult which grants stealth. Giving him very obvious weaknesses into the mid game if he isn't fed and certainly the late game no matter what. Picking him, in theory, is like picking Lee sin who falls off late because all he's pretty much all damage, you want to have the game secured in the first 20 minutes of the game and you don't want to drag it out. Given these qualities I think that Talon is not OP by any stretch, in fact he is very kitable and VERY screwed if he cant 1shot your adc or mid laner. Though right now he is definitely strong enough to be a viable pick. What's your opinion? Abilities shown below

Passive: Talon’s abilities wound champions and epic monsters for a short duration, stacking up to three times. When Talon basic attacks a fully wounded target, they bleed for a large amount of physical damage over time. Damage: 60-160 (+2.0 bonus Attack Damage) over 2 seconds (at levels 1-11)

The Q

• Talon leaps to a target, if in melee range this damage crits, it also heals you when it kills a unit. Cost: 40 / 45 / 50 / 55 / 60 Mana Cooldown: 8 / 7.5 / 7 / 6.5 / 5 seconds Damage: 80 / 100 / 120 / 140 / 160 (+1.0 bonus Attack Damage) (120 / 150 / 180 / 210 / 240 (+1.5 bonus Attack Damage) from melee) The W
• Talon throws out his shattered childhood dreams, dealing low damage when it passes through them the first time but very increased damage on the way back. Slow only applies on the way back. Cost: 55 / 60 / 65 / 70 / 75 Mana Initial Damage: 50 / 60 / 70 / 80 / 90 (+0.4 bonus Attack Damage) Return Damage: 60 / 90 / 120 / 150 / 180 (+0.7 bonus Attack Damage) Total Physical Damage: 110 / 150 / 190 / 230 / 270 (+120% bonus Attack Damage) Slow Amount: 40 / 45 / 50 / 55 / 60% The E
• Talon does his best to imitate the Assassins Creed game series, doing parkour on a selected terrain. This sets the terrain on a long cooldown but has a low local cd. This can go over player generated terrain, such as Anivia wall. Local CD :2 seconds Cooldown on terrain: 160 / 135 / 110 / 85 / 60 seconds The R
• Talon throws some blades out and becomes invisible. This invisibility is True Invisibility / stealth.
  Cost: 80 / 90 / 100 Mana Cooldown: 75 / 65 / 55 seconds Physical Damage Per Hit: 80 / 120 / 160 (+0.8 bonus Attack Damage)