Heroic weapon only if u donate?

[Dzunicb]

To buy heroic weapon u must get 2,2k in 3v3 or in 5v5,why i cant buy weapon from solo q rating?

[skullatbash]

You need 3vs3 rating.
You can't get it with Soloq rating

[Hestionn]

To buy heroic weapon u must get 2,2k in 3v3 or in 5v5,why i cant buy weapon from solo q rating?

i.e. donate