You want a simple, straightforward deck You want a competitive deck that wins easily and consistently You like the idea Shapeshifting to victory but want something more competitive (play Lazav, the Multifarious) If you're interested in a janky Johnny deck packed with weird, unique interactions not seen anywhere else, then Volrath, the Shapestealer is the commander for you
For most intents and purposes, this is better than Vindicate and Desert Twister, which see play in most stacks
Xyris, the Writhing Storm This legendary Snake Leviathan almost escaped me in my writing process, but the inimitable Jason Alt wrote about him just last week
While Tyvars +1 of untapping a creature is fine, the real payoff here is its Thousand-Year Elixir static ability combined with its -2 reanimation mode
Double-sleeving your cards greatly improves protection, not only against dirt and dust but also water