The difference lies in the timing of when you deploy creatures versus casting other spells
To give a foundation to it
If you want to kill through combat damage, you can turn Volrath into either Cultivator of Blades or Wild Beastmaster and give all your other creatures +7/+7 when attacking, or go for an infect kill by turning Volrath into Jodah's Avenger, using its ability to give him double strike, but before the ability resolves turn into Blighted Agent to attack as a 6/4 unblockable infect double strike one-shot
Finally, theres Three Dog, Galaxy News DJ, which looks like the type of legend thatll spawn its own unique aura-based decks
A reminder that all of the regular preconstructed decks (Commander decks printed outside of specialty products like Secret Lair) are Battlecruiser by default on our Discord server and dont require a deck check
I say this often, but Haste is a massively underrated mechanic