Watch Yu-Gi-Oh! 5D's Episode : Signs of Doom, Part 2

Watch Yu-Gi-Oh! 5D's Episode : The Edge of Elimination, Part 3

Watch Yu-Gi-Oh! 5D's Episode : Riding Duel! Acceleration! (Sub)

Yu-Gi-Oh! 5D's - Rotten Tomatoes

Watch Yu-Gi-Oh! 5D's Episode : Acceleration

Yu-Gi-Oh! 5D's: Season 1 (2008) — The Movie Database (TMDB)

Yu-Gi-Oh! 5D's - Episode 098, Yu-Gi-Oh! Wiki

Watch Yu-Gi-Oh! 5D's Episode : Second Round Showdown, Part 2

Yu-Gi-Oh! 5D's - Episode 042, Yu-Gi-Oh! Wiki

Distribution of episodes among all the (finished) yugioh animes. : r/yugioh

The Yu-Gi-Oh franchise has some really great heartbreaking deaths. I think these 4 are the beat, but also the saddest. Brilliant scenes and I cry almost every time when I watch them.