It's flexible, political, and lets you laugh off removal-heavy pods
While his stats are beefy, hes still a vanilla card with no effect, so hes not very popular among players, but he does still get some fringe play in certain Steel decks because, at the end of the day, big stats are big stats, and its nice to have a big dude to play if the game goes long
Revival Trance - Final Fantasy VI Led by Terra Branford , this deck is focused on the post-apocalyptic World of Ruin phase of Final Fantasy VI
In this case, hes become a dashing knight complete with armor and a two-handed claymore so big it would make Cloud Strife jealous which certainly accounts for his immense power level
The fourth time that effect happens, you can flip Sephiroth over, transforming him into his powerful One Winged Angel form
All participants in Prerelease events will also receive a 10-sided die, which is an interesting inclusion