An idea to encourage people to play arena.

So it's no secret that the arena rewards are a little underwhelming, which is understandable, since the game mode is (potentially) completely free. Still, I think a better reward can go a long way.

Here's what I was thinking: since you can now choose from 6 cards during drafting, let's make the final choice full Mythics, one from each color. However, you can only choose one of them. Then, if you do well enough (say, 6 or 7 wins), you get to keep said Mythic.

What do you think?