This is where I get confused:
Destiny Hero - Diamond Dude's ruling's state:
"¢ If the Normal Spell Card is no longer in your Graveyard during your next turn, you cannot activate its effect.
"¢ If the effect of the Normal Spell Card targets, you cannot activate the effect unless there is an eligible target on the field.
The card text states:
Destiny Hero - Diamond Dude
Effect Monster (Warrior / DARK / 4 Stars / ATK 1400 / DEF 1600)
Once per turn, you can look at the top card of your Deck. If it is a Normal Spell Card, send it to the Graveyard and you can activate its effect during the Main Phase of your next turn. If the card is not a Normal Spell Card, place it on the bottom of your Deck.
on the other hand for Bait Doll the rulings state:
"¢ If the target of "Bait Doll" is no longer on the field (if it was sent to the Graveyard with "Emergency Provisions", or destroyed by "Mystical Space Typhoon", as a chain to the activation of "Bait Doll"), then "Bait Doll" is still shuffled back into the Deck. As long as the activation and effect of "Bait Doll" are not negated, the effect of "Bait Doll" that shuffles it back into the Deck still resolves.
and the card text says:
Bait Doll
Normal Spell
Force the activation of 1 face-down Trap Card. If the timing of the activation of the Trap Card is incorrect, negate the effect and destroy it. If it is not a Trap Card, it is returned to its original position. After this card is activated, it is placed into the Deck (not the Graveyard). Then shuffle the Deck.
That's why I'm like :?