After reading your YGO deck/report I know how you feel.
I also went for an AUD$5k (about USD$4k) touney with my Dark Paladin deck (v.10...yes the 10th version of it (which I'm going to be posting up very very soon)).
I faced 3 Black Wings, 1 Lightswan & very very poorly built one (mostly a thrown together) deck....& I came 3rd last (out of 24).
I hope that you do better next time.
I also went for an AUD$5k (about USD$4k) touney with my Dark Paladin deck (v.10...yes the 10th version of it (which I'm going to be posting up very very soon)).
I faced 3 Black Wings, 1 Lightswan & very very poorly built one (mostly a thrown together) deck....& I came 3rd last (out of 24).
I hope that you do better next time.