yugioh legendary dragon decks cyber dragon yu-gi-oh Valley - LEDD-ENB06 - Common - 1st Edition 2100 Defense YuGiOh » Cyber Dragon Core

It uses the stack like any other spell, and it your opponent can respond to it (or you can if you hold priority)

C Common S-Force Lapcewell X LIGHT Level 6 [ FiendEffect ] ATK 2400 DEF 2500 If this card is Special Summoned: You can target 1 "S-Force" monster in your GY, except "S-Force Lapcewell"

C Common Memory Loss X TRAP When an effect of an Attack Position monster your opponent controls is activated: Negate that effect, and if you do, change that monster to face-up Defense Position

Sounds quite nasty to go through

cards, ritual monsters can be either common or rare

This card copies a triggered ability whenever a permanent entering the battlefield causes an ability to trigger