Lamiamon

Effect

＜Progress＞ (While attacking, your opponent's effects don't affect this Digimon.) [Your Turn] [Once Per Turn] When any of your [Reptile] or [Dragonkin] trait Digimon's attack targets change, trash your opponent's top security card.

Source Effect

[All Turns] [Once Per Turn] When your opponent's security is removed from, you may play 1 [Reptile] or [Dragonkin] trait Digimon card with 5000 DP or less from your hand without paying the cost.