Dog Eat Dog

Let's highlight random Malaysian duelist scenario:

Player A sets 3 cards to field.

Player B's "sharp eyes" spots set card abit bendy bendy

Player B thinks: "ZOMG! Set shiny card is Starlight Road/ Torrential Tribute/ Mirror Force/ some expensive shitt so next turn i activate MST to destroy it"

Player A: "Hahahah thats MST I chain it back hit your Black Whirlwind muahahaha cos my MST is foil version!"

Player B: WTF

Moral of the Story: Use foil cards.

Yup, its a dog eat dog mentality of Malaysian duelists all right, true story