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As is, I dont think this card offers nearly enough utility to make it the best choice to build around, especially at 4 mana

How Does Blue Ramp, Remove, and Research (Tutor)

Or Open the Vaults which gets your artifacts too

Card types such as artifact, and supertypes such as legendary or snow, arent creature types

It just has such a drastically positive effect on your win % chances when you get those early flips that it is worth the risk of it sitting about being crap for a while

Overall, Korvold's deck is fairly powerful, but it lacks the complex nuance of other top-tier commander decks and can feel a bit repetitive