ADC's: stop being a burden to your team

Although every team member has a unique role to play, all are responsible for maintaining vision superiority on the map. However, ADC's often completely neglect to buy vision wards whatsoever. Of the champions that are the worst offenders for not buying vision wards, 14/15 are ADC champions.

It is literally impossible for the support to single-handedly maintain full vision of bottom lane gank routes at all times short of constantly backing to fill one's sightstone. Without help from the ADC, there WILL be gaps where the support's trinket is on cooldown or there are no more sightstone charges left.

To be blatantly honest, ADC's and other team members that neglect to buy vision wards (or even just use their warding trinkets) are just making it harder for their team to win.

• No vision? The enemy jungler just waltzed right into your jungle, killed all your camps, and left long before your team even realized
• No vision? Easy dragon/rift herald/baron kill while the enemy team thinks you backed
• No vision? Pushing your lane is just an open invitation for the enemy team to gank you
• No vision? That's too bad, because their jungler only has 50% hp and is killing the rift scuttler. Your mid, jungler, and bot duo could have easily collapsed on him but you had no idea he was there. So their jungler then killed the scuttler and went down to bot and helped his team get a double kill

(Note: supports and junglers statistically bought the most vision wards, followed by mid laners. There is never any excuse for you to not buy at least one or two vision wards each game, no matter your position)

Source: http://na.op.gg/statistics/champion/ (sort by: wards purchased, all leagues, last month, solo ranked, summoners rift)