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
You're only able to respond with special actions that don't use the stack
As the Slivers were a part of her, The Legacy was a part of him, and she understood that
With the Field Guide version of Beza, the Bounding Spring, you can show off your love of the set and the fauna of the plane
You need to make sure you can break the symmetry of this card, which could be as simple as having a Voltron-esque creature that wins in two or three turns while your opponents have been decimated