Cannot be Normal Summoned/Set. Must first be Special Summoned (from your hand) by banishing 1 "Bujin" monster from your Graveyard, except "Bujin Hirume". If this card, which was Summoned this way, is destroyed by your opponent's card (by battle or card effect), and sent from your side of the field to your Graveyard, and both players have a hand: You can discard 1 card, then your opponent discards 1 card. You can only control 1 "Bujin Hirume".
Allows you to discard a card to force your opponent to discard
Cannot be normal summon/set
Must be destroyed to activate discard effect
When summoning Bujin Hirume you would want to banish Bujingi monsters with no graveyard effects first like Bujingi Ivis and Bujingi Pavo. You can banish a Bujin monster then revive it with Different Dimension Rebirth, which also allows you to send a Bujingi monster into the graveyard.
Banishing a Bujin monster from the graveyard can trigger Bujin Arasuda’s special summoning condition.
When destroyed, Bujin Hirume allows you to discard a card and force your opponent to also discard. To make full use of the card you discarded, it is best to discard a Bujingi monster with a graveyard effect. You can also special summon Bujin Mikazuchi from your hand since Hirume was destroyed and activate the discarded Bujingi’s effect when needed.
It's funny that Pokemon does the exact opposite. You're ALWAYS considered to have a hand in Pokemon, even if it has zero cards in it. (And thus a card that shuffles your hand into your Deck, for instance, will still shuffle your Deck even if you had no cards in your hand.)
We already have jaden and bastion, now alexis and chazz nice.