It's arguably easier to build a Brawl deck in Arena, as you'll typically need a lot fewer wildcards or pack luck due to the singleton nature of the format, even though the overall deck size is much bigger
In fact, the winnability of this deck is dependent on just how well someone utilizes these inventor cards and takes advantage of abilities like Gadget's
Esper Sentinel Card draw on a human Esper Sentinel is a one-mana White 1/1 that reads: Whenever an opponent casts their first noncreature spell each turn, draw a card unless that player pays X, where X is Esper Sentinels power. On the face of things, that means you get to draw a card unless your opponent pays one mana
May your tale be powerful and your heart even more so
Jadar, Ghoulcaller of Nephalia, Dreadhorde Invasion and Field of the Dead
One-Off Utility Lands The Gold Saucer The Gold Saucer has a fabulously flavorful design that beautifully captures the idea of a city whose economy centers on gambling