I tried Sion support and this is how I felt
I'm just kidding it was ok i guess....
I'm just kidding it was ok i guess....
Sion support in the everyman's hands is nothing more than a butter knife
Sion support in a Sion main's hands is Excalibur
You should have gotten
for the

You just have to learn how to bowl without pushing the lane. When you get rank 3 E and start chunking the enemies for 1/4 of their health every 10-ish seconds...
https://media.giphy.com/media/GazPMD1iWfgcM/giphy.gif
Focus on poking the enemy down with your E without pushing the lane and wait for the opportune moment to set up your Q. The most important skill to learn as support Sion (even more important that when you're in other lanes) is to be effective without pushing your lane.
You can poke all the time with E, but if you throw minions through the wave, you're going to push real quick. You can get knock-ups with your Q for good trades, but you'll end up pushing again if you don't choose the right spot. You can use your shield to go in for a trade or set something up, but if it pops, you're pushing the lane as well.
The support playstyle and mindset is just a lot different than lane or jungle Sion.
I'm a W man myself. I like the whole "you can't kill me, but by maxing my defense I somehow am dealing more damage also"-thing.
Sion support is good, as long as your aren't picking him into cc heavy enemy.
When playing Sion support I generally go mage Sion, personally. I still build full tank but my runes are ability power based with magic pen or hybrid reds, ability power quints, ability power blues and choice yellows (health per level if you want to be greedy and know you can get away with it)
What runepage/masteries did you go for? Because they matter a lot. Ya know, beyond playstyle.