Lack of decent Itemization for 'Enchanter' Supports
Discussing specifically:
(NOT tank/mage supps).
Most items which should be attractive to these champions are too niche right now, or provide very little in the way of useful stats:
- Pretty useless since the start of S6 due to how easily ADCs can acquire crit. Occasionally useful with 
.
- Lack of synergy with caster ADCs who are popular right now. Even with an auto-attacker adc, the poor stats are hard to justify unless you have a Yi or something. Very niche (except for new Soraka who abuses it hard with her new heal-over-time which refreshes the buff each tick).
- Terrible stats (no AP = no utility/heal/shield scaling) and the active has a 3 minute cooldown. Only worth buying vs


etc.
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- Both are fine, but both items are frequently purchased outside of the support role. Also: there is no comparable item to deal with the overabundance of physical damage in the game right now.



- No problems with these items. They are all at least decent and have a place in any build. EotW is great in an AP-heavy build.
^ One merit of all these items is their cheap price, allowing supports to reach full build sooner than their team. The downside is that the gold value of items like Censer/Harbinger plummets as the enemy team purchases much stronger items.
It's often better to build EotW/FQC --> Banner --> AP items on Sona/Janna/Lulu. Their AP and utility scaling inevitably provides more utility than 'actual' support items can, other than in specific circumstances . Unfortunately not all Enchanter Supports have good AP/utility scaling to make this build work(like Bard/Nami).
Of course, you have the option of building some tanky items like 



but in general it's very inefficient to amass a lot of tank stats on inherently squishy champions. Besides, CDR over-capping is a problem with IBG/FH in support builds.
Thoughts?
has 90 sec cooldown.
? If not, it depends on lots of other factors... If so, its a must-have as it completely changes Kalista's build path and Kalista has no motivation to be away from her support. With this, Kalista doesn't have to invest as much in crit chance if she needs to build other things. HOWEVER, nowadays, crit chance is so easy to get that 3 items can get you to 100% and there are very few useful attack speed items that DON'T add crit chance.
.
Generally speaking: you need ~450 AP to double the effects of any particular QWE spell from it's bases: and with supports, that's just not practical to pursue.
Rather, it's significantly less practical than simply pursuing defenses and being, for all intents and purposes, a CC bot tank that happens to be ranged.
It's much easier to double your defense then double you're pressure from AP: and with CDR being pretty plentiful in defense, it's arguably more efficient in several circumstances to just itemize to live long enough to cast all your skills twice.