Magical Merchant

Okay so the wording for merchant says "FLIP: Pick up cards from the top of your Deck until you pick up a Spell Card or Trap Card. Add that card to your hand. Send the remaining cards to the Graveyard."

The ruling I got for lightsworn wulf awhile back was that when it is sent to grave by merchant's effect it does not get summoned because it is not considered to be sent directly from deck to grave. Rather they are picked up, neither in hand nor no longer in deck.

Sooo.... why is it Rai-oh that stops cards from being added to the hand from the deck work but wulf does not? o.O The wiki said it did and i don't think that ruling makes sense... If its not considered directly from deck to grave for wulf why is it then considered to be from deck directly to hand for the spell/trap? T_T

In My opinion, I think that it would work.. Since Wulf starts his own chain.. Wulf is Being Sent from the deck to the graveyard because he isnt a Spell ot Trap that can be added from the deck to the hand.
Thunder King Rai oh, Stops Cards from being Added from the deck to the hand, You wouldnt be Able to activate his effect because the resolution wouldn't happen. Just like Pot of duality. With thunder king on the field.

Or it would just send the cards from the deck to the grave and the spell or trap you picked up will be sent to the grave. -This is if they Chain "Call of the haunted" To the flip summon of the monster.

If Wulf is sent to graveyard by Magical Merchant, its effect active.

"pick up cards" just means that you reveal cards of your deck. They never leave it, they are sent directly from the deck to the grave, there is nothing that stops wulf. Else Rei-Oh wouldn't be able to prevent you adding cards to your hand if they would be somewhere else other than the deck in between. (For example, he can't stop gold sarc)

Wulf works, also if Rai Oh is facu up in field you still get to activate the effect, but the spell/trap card that you would have added to hand goes to grave instead.

So what happens if you pick up every card in your deck with this effect?

and there is no spell/trap? all cards return to the deck

if there is no spell or trap card revealed when resolving merchant effect, all card that being revealed by this effect are returned to your deck, then shuffle your deck.

Correction: The cards never left the deck, they were only revealed.
And you bumped a 4 months old thread.