Chaos Degradation

Q:If I use this card’s effect to place an opponent’s Digimon at the top of their security stack, is that Digimon then trashed?

A:Yes, that's correct. If you choose to place an opponent’s Digimon at the top of their security stack, you are in effect choosing to trash the chosen Digimon.

Q:What happens if I use this card while my opponent has [BT9-103 Kongou]'s effect activated?

A:Due to [BT9-103 Kongou]'s effect, cards can't be placed in security stacks, therefore this card's "place 1 of your opponent's Digimon face down at the top or bottom of your opponent's security stack" can't be activated, and the target Digimon will be left as-is. Related Cards

Q:If I use this card’s effect to place an opponent’s Digimon at the top of their security stack, does that Digimon’s [On Deletion] effect activate? Additionally, do effects on other Digimon and Tamers that care about Digimon being deleted also activate?

A:No. The Digimon isn’t being deleted, so none of the above occurs.