If youre low on wildcards and arent able to incorporate Kaldheim into your decks, this is where I would start in Historic
Its a nice mechanic in theory but, unless youre playing Limited, it feels as though its going to be something that you only benefit from rarely

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This is a versatile tutor target for Urza's Saga, one of the best cards in both Modern and Legacy
Obviously there were many factors that went into each deck at the time, but I did have a very important takeaway midrange decks can be broken down into many subsets, but the most common are aggressively slanted and defensively slanted
I suggest you prioritize versatile staples like The One Ring or Sol Ring to secure an early advantage