Quite a number of meta cards in OCG/TCG actually relies on opponent doing a thing lol.
Loli handtraps, Kaiju, Maxx "C", PSY-Frames.....heck even Cyber Dragon, the card everyone wants to have in DL, relies on the opponent having already summoned a monster if you want to SS Cyber Dragon.
Although granted, Trickstar has a Trao card that forces the opponent to make a certain action. However, on their own, the monsters completely relies on the opponent making an action in order for their effect to activate.
ahhh little one you have much to learn ... have you heard of OCG & stupid TCG ?
yes also handtraps ? boy you don't want to meet them, your vanilla behind would ripe apart so bad you won't sit forever.