Using token multipliers, each creature dying under your control is going to produce several enchantment copies of itself
Its one of the strongest game actions you can take, since the cards in your hand represent your options at any given moment
It's also worth noting that, while bans for the Commander format are ultimately decided by Wizards of the Coast, there is an external Commander panel that collaborates with Wizards on ban decisions
The Buster Sword also has a powerful extra ability: if the equipped creature deals combat damage to a player, you draw a card and play a spell equal to or less than the amount but that doesnt really have much narrative weight to it
The Book Covers have a chamfer/taper on the bottom and this setting is not needed, it will only increase the failure rate
For starters, the density of triggered abilities that play well alongside Flicker seems to only get higher with every new set