
Each player discards their hand, then draws cards equal to the greatest number of cards a player discarded this way.
Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)
Whispering Madness has 2 printings, first in Gatecrash (2013). EDHREC ranks it #3,226 among Commander cards. It appears most in Nekusar, the Mindrazer decks (20,276 on EDHREC). 1 public deck on TCG runs it. It has 13 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.