User blog comment:Deshiba/Heal on supports/@comment-8506165-20170324150043

" With the nerf to   Exhaust  the full damage/aggressive supports are making a comeback, taking spells like   Ignite"

As far as I can tell the most popular supports are still overwhelmingly enchanters looking to make use of Redemption. And Thresh, but Thresh is always popular. Exhaust is also still more popular than Ignite on enchanters, and in the current rather high damage meta even the more aggressive supports that are being played are still favouring Exhaust slightly. I think Blitzcrank is the only one who religiously takes Ignite.