Hes as tremendous as an island with a city built on top of it, and thats essentially what he is a living, breathing island
The flexibility of being able to choose a value for X is great because we might have an early-game case of wanting (or needing) to cast it for X of one or two, or we can wait until late-game and sweep a much bigger battlefield
Make sure to watch the video for some more examples, and if you have any questions, make sure to let me know in the comments
They provide mild roadblocks for aggro decks, can usually stop one attacker but not a whole swarm, and always net the caster some value, so that they're worthy of maindeck inclusion
Like most Magic: The Gathering cards, the value of Edgar, Master Machinist depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Final Fantasy Commander)