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Walmart has the LEGO Ninjago Kai Fire Mech Play Set (70500) + Bonus LEGO Ninjago Spitta Set (9569) for $10 + $1 shipping = $11 shipped. Free in-store pickup is also available. Select The Kai Fire Mech Play Set to complete your bundle at this price. Each set is $10 to $12 apiece elsewhere. This sold out very quickly the last time it was in stock.