The ability to interact while tapped out gives blue decks an unmatched safety net against combo strategies
Elementals can get pretty pricey, so 5 mana is often a cost reduction, and at instant speed, you can pull a lot of surprises outside your turn
The set of creatures affected by the last ability is determined as that ability resolves
I imagine that, with testing, Id find that there were some cards I didnt like as much, and Id trim them, and gradually reduce the size of the deck in the process
Spiral Chaos has been in the works for a little under a year, and is now on the verge of completion
It includes forums and social media groups dedicated to the topic