Orisa by vonBoomslang

Short Version: Orisa has decreased movement speed and increased range while attacking. Activate trait to stop attacking.

Details: Orisa attacks using a low damage but rapid fire Fusion Driver. Once Orisa is locked onto a target, she may continue attacking it up to 120% of her normal range. She moves -50% slower while attacking - this decrease applies to her base speed, and stacks with all other slows and movement speed increases; it is also not removed by Unstoppable. She has a 0.75s delay when going from not attacking to attacking, but may change targets freely while they're in range. She will fight targets in melee range with slower but higher damage mechanical punches which come out to the same dps.

Short Version: Fire a graviton charge orb in target direction. Reactivate to pull in all enemies near to the orb and slow their movement.

Details: Skillshot with good range (~9) and modest speed; isn't stopped by enemies, buildings, terrain or barriers. Explosion (well, implosion, really) has ~3.5 radius; enemies with range are connected to the orb by energy tethers (visual only). Orb stops and detonates when reactivated or at end of range, there is a 0.6s delay before the pull happens. Afterwards, enemies are slowed by -30% for 2s.

Mana Cost: 80
Cooldown: 16s

Passive: Orisa has 10 Armor.

Short Version: Activate to increase Orisa's Armor to 40 and become Unstoppable for 3s.

Mana Cost: 40
Cooldown: 12s

Short Version: Create a barrier at target location, which stops ranged enemy attacks until destroyed.

Details: Semi-circular Barrier (pointed away from Orisa) with a radius of ~2.5, with its center out to ~4 range. The barrier has ~2200 HP at level 20; it can be targeted and attacked but has an extremely low targeting priority.

Mana Cost: 80
Cooldown: 12s
Duration: 20s or until destroyed

Barrier Mechanics: Yes, I realize HotS does not currently have barriers, but that may change at one point. Here are the proposed mechanics: A barrier stops all enemy ranged auto-attacks and most skillshots(*) that attempt to pass through it, taking damage in the process. Does not block enemy movement. Damage dealt to barriers counts as damage done to shields. Does not affect most area targeted abilities(**). Bouncing projectiles will bounce off (and damage) a barrier, but it costs one bounce and it cannot bounce to the target it was headed for when it struck the barrier.

(*) Notable exceptions: Orisa's Halt; Symmetra's Photon Ball; Sylvanas' Haunting Wave; Kael'thas' Pyroblast.
(**) Notable exceptions (detonate at barrier edge instead of on target, effect may pierce regardless): Chen's Keg Smash, Zarya's Graviton Charge and Expulsion Zone

Short Version: Deploy a device which increases the ability power and attack damage of all allies in sight. Basic attacks reduce this ability's cooldown, doubled vs. heroes.

Details: Deploying the Supercharger takes 1s; being interrupted results in the normal 10s interrupted heroic cooldown. Once placed, the Supercharger has ~700 HP and 35 Spell Armor.
Allied heroes within a range of ~9 that can draw line of sight to the Supercharger (ignoring bush/smoke but stopped by terrain, buildings, temporary walls, enemy heroes and enemy barriers) enjoys a 35% increase in attack damage and ability power.

Exactly how strongly this ability's cooldown is reduced is up to tweaking.

Mana Cost: 80
Cooldown: 100s
Duration: 15s or until destroyed

Short Version: Deploy a device which releases an escalating series of shockwaves, slowing and reducing the ability power and attack damage of all enemies struck. Damage blocked by Fortification or Protective Barrier reduces this ability's cooldown, doubled from heroes.

Details: Deploying the Supercharger takes 1s; being interrupted results in the normal 10s interrupted heroic cooldown. Orisa may freely choose a direction during the placing animation. Once placed, the Supercharger has ~700 HP and 35 Spell Armor.
1s after activation, the device releases a shockwave affecting a 100° by 6 arc in the chosen direction, reducing the ability power and attack damage of any enemies caught in the shockwave by -25% for 4s, as well as applying a -60% slow that decays over 2s.
Every 3.5s afterwards, the device releases another shockwave (five in total), each one 20° wider and 1 longer than the last, with a -5% stronger reduction and a 0.5s longer slow.

Exactly how strongly this ability's cooldown is reduced is up to tweaking.

Mana Cost: 80
Cooldown: 100s
Duration: 15s or until destroyed

Short Version: Activate to disable attacking and use of abilities and increase speed over time. Being damaged will reduce Orisa's speed and eventually disable 4x4 Drive.

Details: Cannot use mounts. Instant activation (no channel). After 1s delay, gain 10% movement speed every 2s up to 30%. Being damaged reduces the bonus by 10% and resets the timer; if no bonus left, deactivates ability. Attacking, using abilities other than Fortify, being stunned, rooted, or slowed below base 100% movement speed disables it instantly.

Cooldown: 5s.