can you mulligan in a middle of a game?

[Leafy]

Can I take my mulligan in the middle of the game if I didnt use it before the game started?

[Arix]

No. You can only mulligan at the start of the game.

[Twanos]

And it's not take "my mulligan if I didn't use it" like you only get 1. At the beginning of the game you can mulligan repeatedly, taking one less card each time until you reach 0 if you wanted to.