It wont fit a trade binder, but the mesh pouch can still fit various tokens and dice
However, you cant do so if you have to target a shroud creature before sacrificing it
// Flying While resolving Valefor's first chapter ability, the next opponent in turn order chooses a creature with the greatest mana value among creatures they control, then each other opponent in turn order does the same
Doing this at instant speed before your turn is advantageous by hopefully gassing up your hand, plus you can go deep with graveyard synergies
Still a blue Knight creature with flying by default at least, so the second factor still counts if it ever becomes usable in Standard
This is specifically important, since The Monarch emblem might be a double-edged sword when opponents steal it