Nova Bread N' Butter combo (using NumPad notation (because it's not stupid) so look at your NumPad to understand the directions):
2M, 5S, 8H xx 214S, 8H xx 214S, 8H, 5S, 8MMH xx 214S, 8MMHS, 6H, 623Atk+Atk
The letters "L", "M", "H", and "S" all apply to buttons. "Atk+Atk" is any two of those four buttons. "xx" means cancel.
This fucking combo is HARD, but definitely worth it. Especially in the corner.