[BASE] Can a Book of Building or Book of Everything be used to complete a Gear Up Upgrade with the Master Builder? Just wanted to know if I can complete a gear up upgrade with the book of everything or preferably with the book of building for my mortar gear up upgrade.EDIT: … https://t.co/dNy6O3wnLC

[BASE] Can a Book of Building or Book of Everything be used to complete a Gear Up Upgrade with the Master Builder? Just wanted to know if I can complete a gear up upgrade with the book of everything or preferably with the book of building for my mortar gear up upgrade.EDIT: … pic.twitter.com/dNy6O3wnLC

— 365 Clash Royale (@365daysofclash) August 5, 2018

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