dnf合成大晶体需要寻找罗杰制作合成，以合成金色大晶体为例，操作步骤如下：
一、想合成金色大晶体，首先背包里要有【金色小金块】，
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二、金色小晶体要合成金色大晶体，需要数量在100个以上。
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三、NPC罗杰位于西海岸，天空之城的门口。
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四、带上原料金色小晶体，去找生产商罗杰，
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五、打开罗杰的商店，在最后一栏【其他】的最下面找到【制作金色大晶体】。
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六、制作每个金色大晶体玩家需要提供材料：金色小晶块X100，金币X10000。
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