While an easy to understand example, its very possible to not catch these min/max opportunities when playing the deck especially if you just go on autopilot
The archetype that will likely benefit the most from Sandwurm Convergence is the Tokens deck, such as Rhys the Redeemed, as 5/5 tokens are great candidates to be doubled with cards like Anointed Procession and proliferate cards like Rootborn Defenses
Collectors, on the other hand, could be choosing to chase this card down due to their love of the song or, more generally, the music of Mulan
At the same time, however, the synergies that have begun to emerge can easily dominate a game, making it well worth building a deck around them if possible
It's important to note that proxies should only be used for casual play with friends who are aware you're using proxies
Im hoping it gets the amass treatment and gets changed to Incubate Phyrexian X so we can see it used on different creature types