6 official rulings from Bandai, last ruled Mar 28, 2024. Straight answers to how this card actually resolves.

When an effect plays an opponent's Digimon into the breeding area, does this card's <All Turns> effect activate?
No, it doesn't activate.
Ruled Mar 28, 2024
Does this card's <All Turns> effect also activate when one of my effects plays an opponent's Digimon/Tamer?
Yes, it activates.
Ruled Mar 28, 2024
Can I use this card's <When Digivolving> effect to delete just 1 of my opponent's Digimon if my opponent has level 3, level 5, and level 7 Digimon?
No, you can't. You must delete as many as possible.
Ruled Mar 28, 2024
When this card was in the trash, my [Leviamon] attacked a player, and a Digimon or Tamer was played by a <Security> effect upon the security check. In such cases, can I use this card's <Trash> <All Turns> effect to digivolve the attacking [Leviamon] into this card?
Yes, you can.
Ruled Mar 28, 2024
My [EX5-063]/[Leviamon] with <Security Attack +1> attacked a player, and a Digimon or Tamer was played by a <Security> effect upon the 2nd security check. This caused the [EX5-063]/[Leviamon] to digivolve into this card from the trash. This card has <Security Attack +2>, but does it get 2 additional security checks?
No, it only gets 1 additional security check. [EX5-063]/[Leviamon]'s <Security Attack +1> is lost upon the digivolution but it gains <Security Attack +2>, so the total possible security checks will be 3. In the situation from your question, you have already performed 2 security checks, so you have 1 security check remaining.
Ruled Mar 28, 2024
I have this card and [Leviamon] in my trash, then my [EX5-069]/[Biting Crush was placed in the battle area. If my opponent's Digimon is played by an effect at this time, this card and [EX5-069 Biting Crush] will trigger simultaneously, but can I activate [EX5-069]/[Biting Crush]'s effect first to play [Leviamon] from my trash and then use the effect to digivolve that [Leviamon] into this card?
Yes, you can.
Ruled Mar 28, 2024
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