The situation that you are describing, in the first place, cannot exist (a Fusion monster being in your hand). If a Fusion monster on the field is supposed to be "sent to the top of the owner's deck" or "returned to the owner's hand" by an effect it is instead returned to the Extra/ Fusion deck.
Yes, as long as the Fusion Monster had been successfully Fusion Summoned before going to the graveyard, and does not have the phrase 'cannot be special summoned except' like Dark Paladin.
"Monster Reborn" cannot be used to Special Summon "Rainbow Dark Dragon" from the Graveyard even if the monster was Special Summoned following the conditions on the card before being sent to the Graveyard.That's because it has the text "cannot be special summoned except by", meaning the listed text is the only way it can ever be summoned.This is not to be confused with monsters like Chaos Sorcerer, who says "can only be special summoned by...". These monsters are the ones that can be revived from the graveyard, but only if properly summoned first by their listed method.
Obviously. Fulfillment of the Contract's effect is that you pay 800 lp and special summon a ritual monster from your graveyard, and when the equip card is destroyed, the ritual monsters destroyed. As usual with monsters who can't be Normal Summoned, the Ritual Monster must have properly been summoned first before you use Fulfillment of the Contract. You cannot simply discard a Ritual Monster and summon it with that card.
Stardust Dragon / Assault Mode cannot be special summoned 'except' by its own effect, or Assault Mode Activate. You are allowed to use Monster Reborn on cards like Chaos Sorcerer, who says it can 'only' be special summoned by a specific way - as long as you do summon it properly this way before it goes to the graveyard. But with the 'except' monsters, that's the only way it can be summoned. You cannot revive it from the graveyard, even if you properly summoned it initially.
Answer taken from the Official English Rulebook: After you've announced your attacking monster and the attack target monster during a Battle Step, the attack target might be removed from the field, or a new monster may be played onto the opponent's side of the field before the Damage Step, due to a card's effect. This causes a "Replay." When this occurs, you can choose to attack with the same monster again, or choose to attack with a different monster, or choose not to attack at all. Note that if you attack with a different monster, the first monster is still considered to have declared an attack, and it cannot attack again this turn.
It's not accurate to say you 'chain' to a summon. A chain is an order of 'activations' which then resolve in reverse order (the implication is that when a card is chained to another, the second card resolves first). The correct term is 'respond' which is what you do to something that has happened fully already. So when something is summoned, or a card is drawn at the start of the turn, or an attack is declared, cards like Bottomless Trap Hole, Drastic Drop-Off or Sakuretsu Armor respectively will start a chain in response. When the Turn Player normal summons a monster successfully, he retains Priority to activate an effect. He could therefore activate Icarus Attack at chain link 1 if he wanted, using the summoned monster as a tribute before the opponent can do anything. The opponent could legally chain Torrential Tribute to Icarus Attack, but the normal summoned monster is already gone.
Yes, as long as the Fusion Monster had been successfully Fusion Summoned before going to the graveyard, and does not have the phrase 'cannot be special summoned except' like Dark Paladin.
As long as that Stardust Dragon had been special summoned properly by Synchro Summon (ie, it did not reach the field via Starlight Road), then the opponent is free to Monster Reborn it before it tries to special summon itself in the end phase.
If a monster says it can't be targeted, then it will have its effects negated because Skill Drain does not target. If a monster says it is not affected by traps, then if it was already on the field before Skill Drain was activated, then it will be unaffected, its other effects will still work. If Skill Drain was already active before the monster is summoned, then the monster's continuous effect that grants it immunity, will itself be negated, as will any other of that monster's effects.
No, as a tribute summon is one continuous step.
No, only from your hand. They can be special summoned from graveyard by cards like Monster Reborn if they were properly summoned initially before they went there. However you can't resummon them from the graveyard with their Ritual Spell Card.
"Monster Reborn" cannot be used to Special Summon "Rainbow Dark Dragon" from the Graveyard even if the monster was Special Summoned following the conditions on the card before being sent to the Graveyard.That's because it has the text "cannot be special summoned except by", meaning the listed text is the only way it can ever be summoned.This is not to be confused with monsters like Chaos Sorcerer, who says "can only be special summoned by...". These monsters are the ones that can be revived from the graveyard, but only if properly summoned first by their listed method.
Taken from the Official English Rulebook: ...However, for Monsters that are Level 5 or higher, you must Tribute at least 1 monster you control before the Normal Summon. This is called a Tribute Summon. Monsters that are Level 5 or 6 require 1 Tribute and Monsters that are Level 7 or higher require 2 Tributes. Monsters that are Tributed are sent to the Graveyard and the "Tribute Monster" you are Summoning is played in face-up Attack position or face-down Defense position (a.k.a. a "Set").
Obviously. Fulfillment of the Contract's effect is that you pay 800 lp and special summon a ritual monster from your graveyard, and when the equip card is destroyed, the ritual monsters destroyed. As usual with monsters who can't be Normal Summoned, the Ritual Monster must have properly been summoned first before you use Fulfillment of the Contract. You cannot simply discard a Ritual Monster and summon it with that card.
As long as the Chaos Emperor Dragon had been properly special summoned initially before it went to the graveyard, then yes, it can be resummoned by cards like Call of the Haunted or Decoy Dragon.. That's because it is a 'only be special summoned by' monster, for which the above rules apply. If it were a 'cannot be special summoned except by' monster, like Dark Armed Dragon, then you cannot resummon it from the graveyard, even if properly summoned beforehand.
Yes, you can. Unless the card lore specifically states "...tribute one face-up [monster name]..." you can automatically assume that you can tribute it face-down. However, you must reveal to your opponent that the face-down monster is in fact Levia-Dragon - Daedalus before tributing it.
Stardust Dragon / Assault Mode cannot be special summoned 'except' by its own effect, or Assault Mode Activate. You are allowed to use Monster Reborn on cards like Chaos Sorcerer, who says it can 'only' be special summoned by a specific way - as long as you do summon it properly this way before it goes to the graveyard. But with the 'except' monsters, that's the only way it can be summoned. You cannot revive it from the graveyard, even if you properly summoned it initially.