Item Niches I'd like to see filled in 2019

Defensive support items: Give damage supports like itemization options so they can build supportive when their team really needs them to. For example, a Knights Vow kind of item that steals resistances from opponents you damage and gives them to a chosen partner. These items would still give them AD/AP stats but sacrifice some of that for support purposes.

An item for AP assassins other than gunblade. The item should give flat magic pen for early damage, but with a passive that favors them over mages. Eg: Speed Blitz: Any form of dash/blink and moving faster than 400 MS builds stacks and grants you bonus magic pen for 3-5 seconds after doing so. Upon reaching 100 stacks, gain a burst of movement speed for 1 second. This could also just serve as a rework for .

An alternative that synergizes more with and abilities rather than and crit. Passive, Opportunist: After a critical strike auto attack your next ability will critically strike for additional damage, scaling with critical strike damage. It probably shouldn't be a 200% buff like with auto attacks since that would be OP, but it would be strong enough to allow casters to cap out at 50% crit, while enhancing their abilities to make up for the damage.

An alternative for mages that can improve their dps for the bot lane role. Keeping them viable there even after ADCs are relevant again. Passive: Each basic attack converts 2% of your current mana as bonus magic damage (Only occurs when above 20% mana). Expending a large amount of mana within 3 seconds triggers Spell Weaving: Increase attack speed for 5 seconds, and your next 3 basic attacks deal additional magic damage based on 20% of the damage done in that 2 second window.