Question 1

Can I activate the "when an effect trashes this card from the security stack" effect when this card is revealed from the security stack or when searching/looking at this card from the security stack?

Accepted Answer

No, you can't. You can only activate the "when an effect trashes this card from the security stack" when this card is directly trashed from the security stack.

Question 2

In what order do a [Security] effect, "when [...] performs a security check" effect, and "when a card is removed from [...] security stack" effect activate when they trigger simultaneously upon a security check?

Accepted Answer

[Security] effects take precedence for activation.  Upon a check, a [Security] effect will immediately activate without pending activation.  For other triggered effects, the turn player activates their effects first.

Rulings Q&A — 2 entries