If youre willing to wait until your fifth turn to have found the needed legendary creatures and are happy with a 75% chance of having Kolvori be a 6/6, then you only need a mere thirteen non-Kolvori legendary creatures, which is a much easier number to come to and still sounds acceptable to me
It's not triggering any abilities from turning a permanent face up
Black has many other ways to get cards into the graveyard if thats the gameplan, or force multiple opponents to discard if thats the plan
It's also amazing with double strike Commanders or enablers like Atarka, World Render and Fireshrieker
Even fewer creatures are exiled in Standard, but there isnt a broken card drawing engine in the format right now if youre casting Sphinxs Revelation for seven or eight, youre already winning
The choice of these specific FINAL FANTASY titles, VI, VII, X, and XIV, appears to be a thoughtful approach, aiming to resonate with a wide spectrum of the FINAL FANTASY fanbase, from those who grew up with classic 16-bit adventures to players currently exploring vast online worlds