Playing as the Ranged AD or AD Carry

I normally don't play ranged champion but I still play a few. When I play AD Carry, I usually pick Vayne,  Ezreal, or Draven. AD Carries have a lot of damage by using ranged auto-attacks like Vayne or use ranged skill-shot like Ezreal.

But AD Carries have their downsides too. They are usually focused down by the Bruisers and Assassins and only a few have escapes. That's why you should take Cleanse and Flash as Summoner's Spells when the enemy team has a lot of crowd control or CC (stuns, snares, knockbacks, etc.) or take Barrier and Flash just to be safe when you're at low health.

In the early game your two priorities is to farm and harass the enemy laner. AD Carries need a lot of gold and items to show their true potential. In team fights, your two top priorities are dealing damage and trying not to die or get focused. You should stay in the back of the fight if there is a team fight happening and go hard once there are only 2 or 3 remaining enemy champions.

As an AD Carry that uses auto-attacks like Vayne or Ashe, you should build attack damage, attack speed, lifesteal, and crit chance. But as a AD Carry that relies on their spells like Ezreal or Graves, you can have a very flexible build.

Playing as the AD Carry is really fun and relies on great positioning and dealing TONS OF DAMAGE.
If you want to try playing as a AD Carry, you should try Ashe or Varus. They are really simple and both of them deal a lot of damage. To carry the game as the AD Carry you should farm early game and play safe and own your enemy's mid game to late game.