It would go like this.
Chain Link 1 - Compulsory Evacuation Device, targetting Stardust Dragon.
Chain Link 2 - Stardust Dragon tributed for the cost of Assault Mode Activate.
Chain Link 2 resolves - Stardust Dragon Assault Mode is special summoned from deck.
Chain Link 1 resolves without effect, as its target is no longer on the field.
Stardust Dragon can only chain to destruction effects that activate. The destruction effect on Venom Swamp that destroys monsters it reduces to 0 ATK, is not activated. It is a continuous effect, and can't be chained to, so Stardust Dragon cannot negate it.
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.
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.
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.
Hand: 2 Junk Synchrons, Quilbolt Hedgehog, Stardust Dragon Assult Mode, and Assult Mode Activate. First set Assault mode activate and quilbolt hedgehog. Opponent: Attack quilbolt. Your turn: Activate double summon. Summon 2 Junk synchrons. Junk Synchron + Quilbolt Hedgehog = Junk Warrior. Junk synchron + Junk Warrior = Stardust Dragon. Activate Assault Mode activate. There ya go!
Bottomless Trap Hole does not target due to the way it can remove multiple monsters. If Bottomless Trap Hole is activated, then Stardust Dragon can be used against it, even if Bottomless Trap Hole was activated in response to Stardust Dragon's own summon.
Yes, Stardust Dragon can activate its negation Quick Effect in the Battle Phase, and even the Damage Step.
The effect of Call of the Haunted that destroys the monster it summons, is not something that 'activates'. Because it does not activate, there is nothing for Stardust Dragon to chain to.
A bunch of ways: Use a stronger monster. Preventing it from being summoned from the graveyard by using Jowgen the spiritualist. Instead of destroyed, use Dimensional prison. Of course use other ways to get rid of it like compulsory evacuation device.
Only those that specifically say they destroy a card(s) on the field. Stardust can negate cards such as Mirror Force, Heavy Storm, Bottomless Trap Hole, Crush Card Virus (if it would destroy at least one monster), Mystical Space Typhoon, .... It can't negate cards such as Giant Trunade, Compulsory Evacuation Device, Dimensional Prison, D.D. Assailant, Reinforcements of the Army, ...
You activate Assault Mode Activate and send a face up Stardust Dragon you control to the graveyard. Then, you special summon Stardust Dragon/Assault mode from your deck. If the assault mode monster is in your hand, you can't special summon it. This is why you would also want Assault Teleport.
No he/she can't, because on Assault mode activate it says: ''Tribute one synchro monster...''. You can only tribute your own monster/s.