Blue-Eyes White Dragon
A Fusion Monster can never be Normal Summoned, as it is impossible to put them in your hand. A Fusion Monster must be Special Summoned, be it Fusion Summon through Polymerization or similar, or a regular Special Summon by any card that can do it.
It is 100% less likely, since we already have 'normal' fusion.
Yes, you are able to normal summon then fusion summon, because the fusion summon is a special summon
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.
"Blue-Eyes White Dragon" is the strongest Normal monster with 3000 ATK.
You can't. Duelists of the Roses does not follow regular game rules. Fusion Monsters can only be Fusion Summoned, or special summoned by effects that can specifically do so.
Normal Monsters are those with a yellow card border. They do not have any effects, so do not have 'Effect' in their type line, or any effect subtype like Union or Toon. Some may be Tuners though. Note though that simply lacking the 'Effect' type does not make a card a Normal Monster - it is the yellow border that does. Some Fusion and Ritual Monsters are not Effect monsters, but nonetheless are not Normal, they are simply Fusions/Rituals. Token Monsters also, by default, are Normal Monsters. Some tokens have an 'effect' such as the 'cannot be tributed for a tribute summon' on Scapegoat's Sheep Tokens, or the damage dealing effect of Ojama Trio. In these cases, the effect is actually a lingering effect of the effect that summoned them, and the token is still Normal in every way.
Arceus.
sometimes depends on which beyblade vs which metal fusion
ok the strongest fire Pokemon in the legendary section is ho oh and the normal is blaziken
Normal Monsters Effect Monsters Fusion Monsters Ritual Monsters Synchro Monsters XYZ Monsters Spell Cards Trap Cards
ritual monsters-needs ritual card effect monsters-which have effects normal monsters-well they dont have anything except an atk and def fusion monsters-sendthe required fusion material monsters to the graveyard to summon a fusion monster from ur etra deck and synchro monsters-well you do whatever itt says on the card