Level 1
[D] Cold as ice :
Chill fades now after 3.5 seconds.
[Q] Sorry, sorry, i'm sorry, sorry !
Quest : Stun an enemy with Chill increases Ice spike's damage by 5.
Chilled armor :
Every 10 seconds, reduce the damage taken from the next hero Basic attack by 75% and take an additional Chill's stack for this hero.
[E] Oh my gosh !
Reduce Cryo-freeze's cooldown by 6 seconds.
Level 4
[Q] That's science ! :
Increase Ice spike's range by 20% and this takes additional Chill's stack (after damage).
[Q] Frost fang :
Ice spike's stores up to 3 charges and deals now 200% more damage against stunned or rooted target.
A-Mei-Zing :
Quest : Hero Takedown increase Ability power by 4% up to 40%. This bonus Ability power is lost on death.
Level 7
[E] You have to let it go !
After the Cryo-freeze's Stasis, Mei gain a shield equal to 15% of her maximum health for 4 seconds.
[E] Ice bucket challenge :
After the Cryo-freeze's Stasis, Mei deals 180 damage to nearby enemies and take them an additional Chill's stack.
[W] Chilled to death :
Weather of frost deals 6% additional damage to chilled enemies by each Chill's stack on them.
Level 13
[W] I'm rather warm, and you ? :
Weather of frost increase Mei's movement speed by 30% for 4 seconds.
[W] Hail storm :
Weather of frost reduce Ice spike's cooldown by 2 seconds for each hitten enemies until 8 seconds.
Freezer :
Increase Basic attack range by 40% (become 5.50).
Level 16
[D] Break the ice :
Stun an enemy with Chill deals also
240 damage.
[D] Iceberg :
Chill stun now for 1.25 seconds.
[W] A weather of death :
Weather of frost increases her attack speed by 40% for 4 seconds.
[E] Cold drink :
Cryo-freeze heal you for 80% of maximum health.
Level 20
[R1] Absolute zero :
Blizzard drone deal in the end of effect
320 damage to enemies in the area.
[R2] Winter is really coming :
Increase Wave of cold's wave speed by 60% and damage by 30%.
Ice wall :
Create a ice wall that blocks all units from moving through it for 2.5 seconds.
Bolt of the storm :
Activate to teleport to a nearby location.
Heroes of the Storm Build Guides
However you might want to check her numbers, at level 1, an Ice spike on a stunned target will deal ~1237 damage combined with the 10 auto attacks. that's a lot of damage, but at the end of they day, its a concept and numbers don't matter, well done!
Its a playable concept. I like it.
But Mei cant move while attacking, or? In Overwatch she can move with Endothermic Blast and this has style, couz it allways looks she skid on her own ice.
About Mei's move, in Overwatch, all heroes can move while attacking so it's balance. But no in Heroes of the Storm, Tracer is only heroes who can but she's very squishy, I'm scared she could be so strong if whe can attack while moving.
Why not a talent on level 16 or 20.