yes you can first play doppelganger then play cyber-steins effect.
Yes it can if you don't activate Stardust Dragon's effect. But you can choose to activate his effect to Tribute Stardust Dragon to destroy and negate EHAZs' effect.
The cast of Doppelganger - 1979 includes: Donna Loney
Stardust Phantom's first effect is a Trigger, and will activate whenever the condition is met. That means it can activate in your turn or your opponent's turn.Stardust Phantom's second effect is an Ignition Effect and can only be activated in your own turns. The protective effect it applies to a Synchro Monster will work like a continuous effect, it can be protected once per turn in either player's turn.
If you mean her effect that special summons a Fortune Lady, this only activates when she is removed from the field 'by an effect'. Offering her as tribute for any kind of cost, will not let her activate.
No it does not activate, Neos Wiseman will be sent to the graveyard before it's effect can activate. So you won't receive any Life Points, nor will your opponement lose any.
Everyone can have a doppelganger.
You don't become a doppelganger, doppelganger exists by God.
No. The effect of Mask states that monsters cannot be tributed. Since stardust requires itself be tributed to activate the effect, you cant activate the effect.
She looked exactly like her, as if she were her doppelganger. She wondered if she had a doppelganger somewhere in the world.
Yes. The flip effect itself will activate after damage calculation.
Doppelganger Inc. is no longer existing.
It's because your doppelganger can pretend to be you or she might be standing right behind you when that person saw your doppelganger.
Yes it can if you don't activate Stardust Dragon's effect. But you can choose to activate his effect to Tribute Stardust Dragon to destroy and negate EHAZs' effect.
I would consider the antagonist as the creature he is. Not who he is but what he is, a Doppelganger.
Doppelganger - 1997 is rated/received certificates of: UK:PG
Yes, in the game, you can sacrifice a blocking creature to activate a specific ability or effect.
The cast of Doppelganger - 1979 includes: Donna Loney