Re-Reading the first Mistborn trilogy and I have a couple of questions
The Lord Ruler implies that he was holding back the mists and the timeliness of his death coinciding with the mists starting to come during the day and kill, before Ruin was released certainly lend credence to that implication. I don't recall ever having the mechanism of him doing that be explained, so how did he? Every magic trick he pulled during his rule was due to him being a full twin-born and his knowledge of Hemalugry which would not explain an ability to affect the mists. The only thing I can think of is that the mists would have done that as the well regained full power regardless, but I don't understand why that would be either.
Why does Preservation's power behave differently in the original trilogy than other shards in the Cosmere? I know that Preservation was hampered by Leras being slowly killed, but why was his perpendicularity something where people could take up the power of Preservation? Why was it only temporary? I was thinking that perhaps Rashek had too much of Ruin in him to keep the power initially, or perhaps it was because Leras still held the power, but then that begs the question of why two people could hold the power at the same time, yes?
How could Preservation's mists kill so many people, not to mention crops and livestock? It seems totally counter to the power of Preservation to do this, even if it is in service of countering Ruin.
Who stabbed Elendi's man, Preservation or Ruin pretending to be Preservation? Why?