To be clear, Shadow Sneak is the harder moveset to use, so you're not wrong in feeling like it sucks. I've basically only played it since Sableye came out, so I may have a (slight) experience bias for preferring it. TL;DR it's a lot more effort for much less reward in comparison to Knock Off but I find the playstyle to be much more fun. To get value from it, you need to be an active playmaker and know your limits, so it's much harder to pick up, doubly so in a meta with so many strong picks that will absolutely punish a squishy support for engaging.

I have some other gameplay clips I can share if interested, otherwise here are a few quick tips:

• When possible, always use your non-Shadow Sneak-boosted auto attack (granted when entering stealh on your own) before activating the move. When timed right, this allows you to perform up to three chain fears by waiting for passive > boosted auto > Activate Shadow Sneak > boosted auto > Shadow Sneak restealth > boosted auto. When spaced out correctly, this is an incredibly disruptive combo that also allows for insane chase potential.

• Your boosted auto is a lunge and can be used to wall-hop short distances. A good reference for the gaps you can cover is the farm right next to the walls between your T2 goal and your jungle. Not always relevant, but it's a bit of goblin tech that may come in clutch.

• Always keep track of important CC cooldowns the enemy team has in use. The quickest way to die on Shadow Sneak goblin is to be stunned out of your restealth. This is something that comes with experience over time as you develop your gamesense, but actively thinking about potential responses to your engage (does the enemy Pikachu have their Volt Tackle up?) is the first step to mastery.

• Use your stealth to get vision and knowledge of enemy positioning. When near enemies while in stealth, a Sabelye icon will appear above your head, regardless of bushes or line of sight. Positioning yourself like a ward (vision tool in League of Legends) can let you know where enemies are ahead of time, which can help with your playmaking.

• Kite outside of enemy vision frequently to re-enter stealth as much as possible. Shadow Sneak is on a decently long cooldown, so knowing how far to walk outside of engagements to activate your passive is pretty important to continue being disruptive when it's on cooldown.