This should probably go into the Forum Suggestions and Feedback section, as it is not part of the game itself.
Edit: While I'm here I might as well comment on it.
It would encourage collaboration among artists and organisers ect. However, even though I can see it is a thing for particular users only, I almost always prefer my own work to the work of others.
For example, If I made a card
Fly (spell)
Target creature has 50% chance of throwing themselves at the ground and missing. (gaining Airbourne passive ability-Impossible I know)
If unsucsessful, generate
My collab partner could realise this card is situational, and overeliant on chance, and change it to granting airbourne status for
. Now although this is an improvement for the card, I personally would not like it.
And vice versa, I could come up with an average idea for a card, my collab parter could call it too simple and completely recreate it.