Not only does Sephirophs One-Wined Angel transformation offer a slew of powerful new abilities to keep the sacrifice train going, but he even provides a rare emblem that has massive combo potential for the format
Others use alternate costs and make for even more interesting and dynamic cards
Magic: The Gathering has had a number of crossovers that expand upon the series' mythos and lore, the introduction of Commander decks which I still can't quite wrap my head around, and a dozen new rules and card types, all of which feel like an entirely new language to someone who just about managed to comprehend it just shy of 20 years ago
While you may struggle a bit to defeat more well-built decks, this simple upgrade should be enough to improve your gameplay and presence on the table in a significant manner
Absolutely genocide
Even better, his very affordable mana cost means you don't have to worry too much about removal spells, as you can play Isshin, Two Heavens as One several times without it becoming too taxing