Can I pay 4 to summon an ST01-001 Nebula Dragon Andromeda when all I have on my field is this spirit?

If I pay this spirit's soul core and it becomes LV1, can I still draw a card?

I attack with a LV1 Dragron Trooper and my opponent uses ST04-016 Drowsy Fumes during a flash window to reduce its BP by 2000. Will it be destroyed at the end of the battle when its BP becomes zero?

Can I draw two cards when I reduce my opponent's life using a spirit with two symbols?

If two spirits are destroyed simultaneously and one has my soul core on it, can I use the effect on this nexus to place all of the cores from the spirit with the soul core along with all of the cores from the spirit without the soul core onto the selected spirit?

Can I use the flash effect on this card to cause one of my opponent's spirits to gain 2000 BP?

Can a LV2 ST01-009 Dragron Trooper attack while the flash effect on this card is active?