Four archetypes is often too much for a single deck, but here they come together nicely. Even + Dude is a natural combination, which then summons a lot of minions to power Infuse cards. Finally Dun Baldar Bridge turns cheap summons into real threats.

I originally created this as a way to progress in the "Play 30 Infuse cards" weekly quest, but it has been performing better than I expected so far. So far I have more wins than losses but with a small sample size. I'm confident you can climb with this when you still have bonus stars, but I'm not sure whether it will settle above or below 50% win rate in the long term. I guess it also depends on what decks you run into: whether they have repeated answers to wide boards or not.

Mulligan

Keeps are Dun Baldar Bridge and, unless you're sure the game won't go to turn 10, Sire Denathrius. Other than that, make sure you have a turn 2/3 play; hero power on turn 2 can be an option but on turn 3 you really want to play a minion as well.

Game Plan

Pressure the opponent by creating wide buffed boards. Sometimes that will win you the game, otherwise you can fall back on Sire Denathrius to deal the final blow: Infusing 20+ times isn't hard if you draw him early.

Generally keep an Infused Murlocula for the turn on which you cast Bridge, but if needed for pressure or healing you can play him sooner. The same applies to Frenzied Felwing, but as that card's discount is more conditional, there is more reason to play it early.

Cult Master should only be put on the board when you're trading in your minions. When played with Bridge active and behind a taunt, it can be hard to remove, but in general you should assume it doesn't stick.

Replacements

Genn Greymane is the only craftable expensive card. If you don't have him, you'd probably want to revise the deck pretty thoroughly. I'd advise at least cutting Manafeeder Panthara and putting in cards that summon Silver Hand Recruits, like Lost in the Jungle and Muster for Battle. Replacing one or both Cult Masters by Crystology can make the card draw more reliable. Then smooth out the mana curve by replacing some 2/4-cost cards by 1/3/5-cost cards.

Lightfused Stegodon is probably the weakest of the Silver Hand Recruit pay-off package, because it's unreliable and hard to plan around, so if you need to make space for something else, that's a candidate to sacrifice.

Ram Commander is a card that might be good in this deck, as it produces cheap minions for when Bridge is active and to fuel Cult Master. Perhaps I'll try that out later.

You could increase the chance of drawing Dun Baldar Bridge by adding one copy of Prismatic Lens. It's a bit expensive to weave into early turns, but it could be a good way to prepare for a reload when you have mana left over on later turns because your board is full.

The deck is mostly minions to maximize the potential of Bridge, Grimestreet Outfitter and the Infuse mechanic, so keep that in mind when considering putting in a spell or weapon.