[When Attacking] When this Digimon attacks a player, delete 1 of your opponent's Digimon with 4000 DP or less.
Inherited Effect
[Your Turn] While this Digimon has [Machine] or [Dragonkin] in its traits, it gains <Piercing>. (When this Digimon attacks and deletes an opponent's Digimon and survives the battle, it performs any security checks it normally would.)
Rulings Q&A — 2 entries
Q1Q3196
I have a Digimon that gained <Security Attack +1> from another card’s effect, and which also gained <Piercing> from this card’s inherited effect. I attack an opponent's Digimon with it, and perform a security check with <Piercing>. The first card checked has a <De-Digivolve 1> [Security] effect, which trashes the top card of my attacking Digimon, turning it into a Digimon without [Machine] or [Dragonkin]. This causes the Digimon to also lose <Piercing>. Do I still perform the second check?
Show ruling
Official Ruling
Yes. <Piercing> has already activated. Perform the additional check, assuming your Digimon still has <Security Attack +1>.