We usually flesh these documents out in meetings with our creative team, but for Counter Blitz, I went into the meeting with that document almost finished
You ignore the timing restrictions normally placed on sorceries, which is cool, but this feels like a very underwhelming ability
It even has the potential to outright win the game if your deck leans heavily on creatures and fills the graveyard
On the rare front, Spellskite and All is Dust are solid cards that should maintain at least 70% of their current value
While I wouldn't be surprised to see Slivers get there in Historic eventually, we probably need another Sliver set or two to make it happen (although they do rank a tier above Squirrels because at least there are enough Slivers to make a functional deck)
The insect costs three to cast and has a baseline stat of 2/2