This is a tentative rework for Caitlyn, the Sheriff of Piltover. In the ADC roster, Caitlyn is a somewhat polarizing figure both thematically and gameplay-wise. On one hand her laning phase is extremely oppressive due to her high base range on her basic attacks and her late-game is very potent due to the combination of her passive and attack speed, critical strike and attack damage she builds from items. However her gameplay post-9 takes a drop damage-wise, where her Piltover Peacemaker loses damage relevance and overall her kit doesn't capture the feel of what sniper should be. Her 90 Caliber Net is a simple escape tool and her Yordle Snap Trap simply doesn't make sense with the rest of her kit.
Thus this rework focuses on 3 major aspects: Landing skillshots. As a sniper your aim has to be the best. With the new version of Headshot, as long as you keep landing spells and auto attacks over and over, landing and comboing them your damage is substantially magnified. Positioning/Repositioning. As a sniper you need to select your spots, prepare and take aim. Then you abandon the spot, bide your time and repeat the process. To re-capture this feel i'm stealing one of Xerath's pre-rework abilities, Locus of Power as the first part on her ultimate. With this spell, her basic attack range and spell range is doubled, but there's a twist: her basic attacks work as skillshots now. With this, she gains the highest auto attack range in the game and massive spell range, but you need to actually aim to deal damage. Patience/Decision Making. Another aspect of being a sniper. Who do i hit? What type of shot should i use? Where do i position? And by being patient, standing your ground and landing your spells, you build stacks until you can use the second part of her ultimate: Ace in the Hole, which gameplay wise is as live, but with somewhat higher damage. While a deep and perhaps radical rework, i believe it can make Cait more fun, thematic and rewarding and interactive to with/against and while i loath stacking passives, in this instance they become a tad necessary to highlight the notion of landing her spells and basic attacks. The core of the gameplay will revolve around your aiming skills, decision making and resource management.
Also be sure to read the descriptions, especially the ultimate one for extra details. Lastly i thank @Willbachbakal who helped me get the new icons. Read it, imagine the gameplay and be civil with the critiques.
EDIT: Work in progress.
EDIT 2: Sorry people sometimes i get a breakthrough a tad bit after making the whole thing. It's frustrating sometimes. Created a new W spell that should be cool and i modified the passive to reward max range snipes plus a balance modification to her ultimate.
EDIT 3: Don't forget to read the descriptions.
EDIT 4: FINALLY DONE.
EDIT 5: The initial conversation between me and @Willbachbakal was about the inital, Work in Progress version, where i was comtenplating leaving the ability as a more simplistic spell or change it. Plus the passive was different. Call it an alpha test if you will.