Ive been having good success with conq+font and second wind. Ninja tabi rush into Rylai then jaksho, im usually still second best dmg on team as supp. Always rush tabi and if they got magic dmg heavy then force of nature instead of jaksho. Font just gives way better value than anything else ive tested with average 3k+ team healing.
Swain with Jak'sho now because of the rework feel like you play old league in new league The problem is: in new league noone have that much self healing as you so they can do 1 thing: ping the bounty on you after 1v5 with 2 item