Nova by Scudmarx

• Level 1
  • Advanced Cloaking (Passive) - While Stealthed, you regenerate 5 health and 2 mana per second.
  • Longshot (W) - Increases the range of Crippling Shot and the next basic attack after using it by 2.
  • Covert Ops (Passive) - Every 8 seconds, the next damage taken while Stealthed is reduced by 50% and does not reveal you.
  
  
• Level 4
  • Remote Delivery (E) - Increases Holo Decoy cast range by 100% and reduces its cooldown by 4 seconds. Gain one credit per minion killed nearby. Holo Decoys now deal damage to non-heroes and will bribe mercenaries with 10 credits per bribe, instantly defeating them. Does not work on Bosses. If a camp is defeated entirely with bribes, the camp respawns 50% faster. Holo Decoys are now able to capture mercenary camps on your behalf.
  • Covert Mission (E) - Increases the duration of Holo Decoy by 120%. Holo Decoys will now channel nearby objectives.
  • Patience (Q) - Each second you are stealthed and Snipe is ready, you gain 5% increased damage on your next Snipe, stacking up to 50%. The bonus is lost 2 seconds after leaving stealth.
  
  
• Level 7
  • One in the Chamber (Passive) - After using an ability, your next Basic Attack within 3 seconds deals 80% additional damage.
  • Heavy Rounds (Passive) - Your basic attacks deal 250% damage, but your Attack Speed is 40% slower.
  • Explosive Rounds (Passive) - Your basic attacks deal 75% damage initially, but remain lodged in their victims and explode after a 2.5 second delay, dealing 40% additional damage to the target and all other nearby enemies.
  
  
• Level 13
  • Double Tap (W) - Crippling Shot now has 2 charges.
  • Pinning Shot (W) - Crippling Shot now roots the target for 1 second before slowing them.
  • Rail Shot (Q) - Increases the range of Snipe by 10%. Snipe now pierces through heroes and its damage is no longer reduced by hitting non-heroes.
  
  
• Level 16
  • Perfect Shot (Q) - Snipe deals 40% more damage to the first enemy hit. Takedowns instantly reset the cooldown on Snipe.
  • Anti-Armor Shells (W) - Crippling Shot lowers a Hero's Armor by 25 for the duration, causing them to take 25% increased damage.
  • Lethal Decoy (E) - Holo Decoy does an additional 40% of Nova's damage.
  
  
• Level 20
  • Fast Reload (R) - Triple Tap's cooldown is reset if it kills an enemy Hero.
  • Precision Barrage (R) - Precision Strike holds 2 charges with a short cooldown.
  • Emergency Decoy (Passive) - If you take damage below 30% health you will enter stealth, become invulnerable and unrevealable for 2 seconds, and create a Holo Decoy. Cooldown: 120 seconds
  • Ghost Protocol (D) - Activate to gain Stealth and become unrevealable for 2 seconds. You do not lose Stealth from attacking, or using Abilities during this time. Cooldown: 60 seconds

Make Nova more generally useful

• Give Nova at least *some* waveclear ability.
  
  Her Snipe now penetrates minions, so she can use it (if well aimed) to clear minion waves efficiently. Additionally, Remote Delivery at level 4 enables her decoys to deal damage to non-heroes, waveclearing for her while she remains safely in stealth (ready to countergank anyone who thinks she is foolishly waveclearing in the open).
  
  
• Make her better at scouting.
  
  Nova's passive no longer grants her +10% vision range at all times, but instead grants +20% vision range while stealthed. She is therefore better at finding targets and at keeping an eye out for approaching dangers, giving her an important benefit outside of fights.

Make her gameplay easier for low-skill players

• Make bad Snipes less punishing.
  
  As her snipe now penetrates minions, it can still damage heroes even if you don't hit them directly, albeit at reduced power. Hitting them directly is still the best choice as only then do you get full damage on them, but hitting a stray minion no longer *completely* negates the attack. The change from Snipe Mastery to Patience further reduces the massive risk/reward gameplay on hitting her snipes while still playing into the 'patient sniper' fantasy of waiting for the perfect shot.

Make her more interesting to play

• Make her talents (especially her decoys) more interesting.
  
  There is far less redundancy in each level, with several talents combined so that talent choices meaningfully change her playstyle instead of just tweaking it in tiny ways. This is most evident at level 4 - combining four talents into two far more meaningful ones.