Forum:Stadust dragon Effect?

In Stardust dragon siad:

"You can Tribute this card to negate the activation of a Spell Card, Trap Card, or Effect Monster's effect that destroys a card(s) on the field, and destroy that card. If you negate an effect this way, you can Special Summon this card from your Graveyard during the End Phase"

And Also in Starlight road's ruling page said:

"Special Summoning “Stardust Dragon” with “Starlight Road” is not a Synchro Summon. If that “Stardust Dragon” is later sent to the Graveyard, it cannot be Special Summoned by its own effect or “Call of the Haunted."

In these Texts I have 2 quistions.

In The First with second Bold text.

So why it can't revive it self from graveyard?

And the requirement for revive it self is only the first Bold?

There is no sign of "When this card is Syncro summoned" is a requirement for this effect anyway...

Next

What the meaning of "Or call of the Haunted" mention in starlight road ruling?

A lot of quistion i asked today.

Thanks For all answers! :)