If the effect on this spirit causes a spirit to have zero cores, is that spirit destroyed?

I attack with this spirit while it has a soul core on it and my opponent blocks using a spirit with two cores on it. During the flash window after blocking, the number of cores on the blocking spirit is reduced to one using ST02-014 Poison Shot. In this situation, is the block treated as if it did not occur?

If the effect on this spirit causes a spirit to have zero cores, is that spirit destroyed?

If the effect on this spirit causes a spirit to have zero cores, is that spirit destroyed?

When placing this nexus, can I place one core from one of my opponent's spirits into their reserve if that spirit has one core and one soul core on it?

I control an ST02-013 Purple Smoke Valley and attack using a spirit with 【Curse】, and my opponent blocks using a spirit with two cores on it. During the flash window that follows, I use ST02-014 Poison Shot to select the blocking spirit and remove one core from it. In this situation, is the block treated as if it did not occur?

If I attack with a LV1 spirit which gains 【Curse】 at LV2, will the effect on this nexus prevent my opponent from blocking using spirits with only one core on them?

If the effect on this magic card causes a spirit to have zero cores, is that spirit destroyed?

If the effect on this magic card causes a spirit to have zero cores, is that spirit destroyed?

Can a spirit with only one core on it attack while the burst effect on this card is active?

If a spirit with 【Armor: Purple】 attacks while the burst effect on this card is active, must one core still be placed into the reserve?