Don't take Sion support
You have no reason to.
Why wait for Sion's stun when you can take
?
Do you want an ability that slows them from far?
Why not
instead? or
? or
?
Do you want an ult that knocks people up?
does it better. And so does
to some degree.
Do you want a shield that scales with your HP?
and
have that
Do you want to stack with your W? THEN WHY COME SUPPORT IN THE FIRST PLACE?
Seriously, you may have fun with this champion, but everything he does there champions that do it far better.
...