Smite Heal support Kassadin.
or Smite Flash support Kassadin

-> use his ult to get in and steal key objectives (blue, dragon, baron) use flash to get out.
-> his ult allows him to ward safely

go kage's pick & philo stone for gp/5.
Then go rylais/rod of ages for survivability
Then go Wota for support
upgrade deathfire grasp.
build = finished

alternatively
philo, kage, roa, tear, wota
upgrade to dfg, upgrade to Archangels staff
sell philo for nlr & upgrade.

^ high priced support, but given 12 assists + extra gold for assists mastery + gp/5 mastery + gp/5 items + gp/5 runes... you get pretty good gold.


--- have not tried this yet --
- calicfer

Your jungler has smite, you don't need it.

Only 1 of his spells gives utility without needing farm. Better supports exist, and he's one of the best mids with the current meta of APs going mid.

went philo kage hog boots tear ROA deathfire, sold lucidity boots for mercs, archangels staff then needlessly large rod.

I sold hog sometime.

14k gold endgame

didn't ward enough though.
only had 48 minion kills

Or you can go solotop and start with 15 health pots