The MTG design studio loves using sagas to communicate stories, and so they appear in a lot of Universes Beyond products, like the fifteen original sagas themed around TV episodes in the Dr Who Commander precons
You can spend one Black mana for two life lost, two cards drawn, and you kill creatures while you do so - so he's basically a stronger effect for most Black decks at the kitchen table as he interacts with your foes' stuff and works well with any life loss effect out there
A mod that adds a bunch of Quality Of Life features to the workbench including putting card bundles in empty boxes placed next to the workbench
Another card that pairs well with Sephiroth is Goblin Bombardment
As for Commander, he's been playing since 2010, when he started off by making a two-player oriented G/R Land Destruction deck
Dread Wanderer goes a long way toward making this combo more reliable