Long ago the concept of highlander decks came up in chat. In Hearthstone it's not such a stretch
First, I threw together a true higherlander rainbow, restricting even pillars
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Afterwards, I decided if you lifted the pillar requirement the best mono would be life. It's performed surprisingly well in pvp
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Of course, the other easy element to do this in was fire
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& after winning a game vs Septima's time/life stall with it, I decided to do the rest
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These decks are pretty fun since every draw is different