A small change to make Thresh more fun for everyone, slow his lantern grab a bit.
Right now Thresh's lantern is practically instant. When a champ clicks it they are immediately carried at lightspeed to Thresh leaving no real chance to grab them mid-air or stop them as they grab it.
I propose that the missile-speed of the grab be slowed by some ~20% (frankly I don't know the amount). This would serve to make Thresh more fun to play as and against. For Thresh players it will give then an extra fraction of a second breathing room for lantern combos which make them feel 100% badass. For people playing against Thresh counter-play is no longer limited to trying to block the lantern with something but instead a well timed cc can be used to grab that 100HP Kog'Maw before he's pulled 500 miles to guaranteed freedom, now Blitzcrank can snatch that lobster right out of the air and feel 110% badass as his friends on teamspeak start yelling and cheering in the usual testosterone-powered fashion.
To be clear I am asking for this as someone who only plays Thresh (my main account is on OCE where I've rarely played anything else for months). I feel almost dirty grabbing someone so easily when by rights they should die for their mispositioning, when my friends say "OOOH THAT LANTERN" all I can think is "well yeah... I didn't really do anything and it's not like their team had a chance". I also really like pulling people along my hook with lantern which right now requires precision reaction time in soloqueue where you really don't know when someone is actually gonna see that thing.
I just feel like this change would make Thresh a lot more exciting for both teams and moreover less infuriating for the enemy who really did deserve that kill and landed just about the most perfectly aimed blitz hook of their LoL career.