i play shaco support i drop boxes to block skill shots that would kill my allies, i jump in the way and take the skill shot in stealth then clone when they think im their new best kill target and make the clone run so they chase it and both me and my adc get out scot free as they use ults and summoners to kill my clone
i make junglers fear ganking my lane as shaco support because they end up in 3+ boxes and we get a kill or 2 our of it because of the box fear chains
i make the enemy die 2v3+ when they tower dive us with no kills gained from them because of predictive box placements
sure landing 1 hook as thresh or blits isnt amazing
but if they land a hook on a dashing enemy champion that saves your life, or save you from ur own stupidity by giving their life in a way that ends with you getting a double kill by just AAing, dont think YOU earned the kill and your support fed, he turned your mistake of getting caught out into an advantage for your team through outplaying with mechanics
i stopped playing traditional supports becuase people woudlnt recognize the janna R into a full charged janna Q that keeps the enemy assassin off of you and CCed for 3 seconds before he is even able to react. no 1 apreciated it so now i play a support that is fun AND you cant help but notice my outplays, my saves and my skill, because im playign something you THINK cant be a support and im recking with it
as a ps i can play relatively any support with success, but shaco is the most fun and most noiceable support to get praise for outplays out of all of them ive played
blocking skill shots left and right with boxes is very fun and fast actioned reactive/predictive paced play that i love it, predicting and even influencing enemy movemen with my boxes and fooling them into death traps is halarius, and the clone shananigans are epic. ive fooled entire teams to blow all their CDs on my clone (including ults) them my team goes in and cleans up.
beign a support and being good at it isnt determined by the champ you play, its all skill, reaction time and game knowledge
edit:the level or tilt and flame i cause the enemy team is also a huge bonus :D