Hooru Heroes

Hooru Heroes is a deck that builds itself. Plunk Wumpkin is great. Helena, Skyguide is great. Boom, you're playing Heroes, so add Xultan Ambassador and Gold-Plated Revolver. Now, we need some more heroes for density, so in go Jada, Kothon, Velise, Hojan (a stallbreaker who synergizes with everything you've got), and by this point the deck core is pretty much done.
Enough flex spots left over to customize utility/removal based on the meta. Steyer's Eyes is great whenever you draw it; shuts down void recursion, helps draw power, provides lifegain/damage, she does it all. Argenport Noble, meanwhile, is mostly here for League Explorer and Valkyrie Station, although he's a fine body and can take down a flier in a pinch.
For removal, I've finally settled on 3 Trick Throws and Ice Bolts for flexibility, face damage, and stopping power. Helena is popular enough that stuns like Permafrost aren’t as reliable as usual, and Defiance/Chloric Mix were a bit too passive for a deck that wants to attack so much. At 6ish slots you usually have it when you need it, but too much more and you'll start running low on threat density.

Still happily tinkering with the list, and I'd welcome any input, but I feel it's a very solid starting point. The deck is a a ton of fun to play without quite feeling like braindead aggro; micromanaging your debt from turn to turn while maximizing pressure is a balancing act that will keep you occupied all the way to Masters, I promise.