<p>1. Yes they are the same person, but one has divinity and the other doesn't. Similar to Saber and Saber Alter. </p><p>2. Yes there are about 2 pictures of her during her intervention with Avenger and Fake Archer</p><p>3. Your correct. Although we don't have full details, she did technically summon herself due to some things happening and she has 'died' a couple times. Prelati(make) is her original self</p><p>4. There is 1 photo of Watcher. However since Watcher is multiple entities we've only seen 2-3. Enkidu has the highest form of Presence Detection, and yes Enkidu is a lancer.</p><p>6. Fake Berserkeker doesn't have a true form. True Berserker looks like uhh, I'll just say a Automata machine </p><p>7 We really don't know much about Sigma being a servant or not</p><p>8 Assassin from the info we have isn't the same servant from FSN or the Illyaverse. We do know it's a Hassan. But since there are multiple Hassan-i-Sabbah, we don't know which one, this one could be a new one altogether.</p><p>9. [Spoilers]</p><p>
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</p><p>(in a nutshell) Richard the 2nd in life was in short a Aurthur-fanatic he loved the King Aurthur Legends and named whatever blade he had Excalibur. Although not the Real Divine Construct, he could temporarily Access that power with whatever weapon he has holding, Ex: When he used a Stick off the ground as Excalibur to parry Enkidu's attacks. Its a pretty OP power don't you think?(he isn't related to Aurthur though keep that in mind he was a king after Aurthurs rule)</p><p>I'm sorry if this doesn't answer all your questions. Even though the novels are ahead, we still don't know enough to formulate complete answers to everything</p>