That's a pretty tight list! I don't understand why no one is playing Phase Crawlers. Some of us Hivers were playing crawlers even before BOTW. 3/2 + hidden is overstated in just the way Deception wants it. 2 HP means it's a target for Assassin's Aim. If you're running Shrike, it seems like an auto include.
While deck steal HRD can pull off insane things, I'm not sure it's too great overall. HRD needs to be as fast as possible, and classic HRD decks use every card to accomplish that. Instead, deck steal is about value and card advantage. Control deception makes great use of it, but I'm not sold (yet) on aggro.
It does feel terrible when they steal all your cards though 😄. I've seen some successful lists with just Gama + Cats and the 3/1. The thinking is the Shrike is too slow. Here's one from FakeMews:
Although he is also testing one with Shrike:
https://tinyurl.com/53yc5wa8
Yea true but it just works out that the deck steal cards are also hidden so it kinda fit easily haha. And the low cost activators just make it more "zoo". HRD is definitely better with Shade Walkers though
But! I don't have walkers, so your list is nice for me 😃