Jennev tools

This is not an original deck: a classic Jennev shell with some changes:

- Amaran Stinger: very good against aggro, so a good ladder choice. It can apply some pressure early against control and good against Vargo. I'm in love with the card.

- Auralian merchant: better than Jennev for me: ramp faster in heart of the vault, Better against rakano aggro.

- Market choice: Nothing amazing here: Cirso Choice is a security against aggro, and good against flameblast nonsense. Better than torrential because we can fetch it with Auralian merchant. We dont have hailstorm main deck so having a 2 damage wipe is good again Hooru fliers with howling peak smuggler.