Like the synergy between Suplex and Phantom Train before it, Sephiroth, Fabled Soldier and Aerith have a synergy that grimly reflects his fated killing: Aeriths rules let her gain +1/+1 counters every time you gain life, and Sephiroth, Fabled Soldier gives you life every time another creature dies
The matchmaking, if it's a thing, sure doesn't feel like it, and frankly winning competitive matches or having expendable income seem to be the only real ways to get cards
A lot of decks rely on the card, and consequently, the card is expensive compared to other rare cards
Triggering landfall mechanics or just having more total mana than expected is something most people miss
Its Circle Circuit attack offers dynamic gameplay that scales with your Lightning-type Pokmon on the bench, allowing for highly strategic plays