If you want to switch, sell your color-specific cards (you recover 30-50% of cost) and buy a different starter deck plus singles
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
Wind Spirit (Ice Age/Alliances) Often people lament about the good old days of Magic , where men had hairs in unimaginable places, and Black Lotus made Lotus Petal look like Jeweled Amulet
When the last time counter is removed, the second triggered ability of suspend (the one that lets you cast the card) triggers
One of the big traps that I feel like Sliver decks fall into is that they play too many Slivers