>>283592295
In everything that doesn't concern actual card game strategy, the sub simply isn't entertaining, any line delivery from the characters is just dry and so to the point that it's boring, the sub also exaggerates the quirks of many characters to the point they become one note with Pegasus being the worst example, with him repeating the same catchphrases endlessly.
The dub on the other hand is meant to entertain you and it worked stupidly well, plus every character doesn't sound like a dumb teenage girl.