See Cultivated Plot (for why I was thinking about other player's turns) and Frightful Bellow (for something that's actually related.

Might as well think outside the box, right?
• After the player whose turn it is declares attackers, each other player declares attackers in turn order. Players select their attackers in secret, then all attacking players declare their selections simultaneously.
• Attacking creatures can't block.

The original text of Infiltrate: "This can attack during any player's turn."

I was trying to be simple and elegant, but maybe I went too far for my own good.

Does anyone have suggestions for a confuse, clear wording?

Bonus thought: This could probably be in black as well, giving us an extra keyword.

If, you know, it wasn't probably a bit too bizarre and unworkable.

Edit: And like, not even good/fun? Maybe?