Mystic Redaction | Whispering Madness | Teferi's Ageless Insight

Cards

You control a creature that can attack this turn and that cannot be blocked by an opponent.
An opponent has at least six cards in hand, or you have at least seven cards in hand.

Cast
Whispering Madness by paying ({2} magic symbol) ({U} magic symbol) ({B} magic symbol) , causing each player to discard your hand, then draw cards equal to the greatest number of cards discarded this way, with you drawing double that number due to
Teferi's Ageless Insight.
Whispering Madness' cipher ability triggers, exiling
Whispering Madness encoded on a creature you control.
Mystic Redaction triggers for each card you discarded, causing each opponent to mill two cards for each card you discarded.
Deal combat damage using the creature that has
Whispering Madness encoded.
The creature triggers, casting a copy of
Whispering Madness without paying its mana cost.
Resolve the copy of
Whispering Madness, causing each player to discard your hand, then draw cards equal to the greatest number of cards discarded this way, with you drawing double that number due to
Teferi's Ageless Insight.
Mystic Redaction triggers for each card you discarded, causing each opponent to mill two cards for each card you discarded.
Move to your cleanup step, and discard cards down to your maximum hand size.
Mystic Redaction triggers for each card you discarded, causing each opponent to mill two cards for each card you discarded.