Went 6-1 in day 2 of the MTG arena alchemy qualifier weekend! Played izzet burn (i.e. prowess but I made it more aggressive than the stock builds). Don't have a clue about the sideboard - I only really used lynx/pierce/flood maw. Decklist in alt.

Went 7-2 in day 1 of the Magic Arena Qualifier with Temur Otters! Deck is very very good (especially with the matchups I got).
R1: Zur Ramp WW
R2: Otters LWL
R3: Zur Ramp WW
R4: Zur Ramp LWW
R5: MonoR WLW
R6: GB WW
R7: GB WLL
R8: UB WW
R9: MonoW Caretakers WW

Decklist in alt.