ok i'm not exactly sure if it would be the best thing for it but i think tungsten would be the best it is heat resistant shatter resistant and extremely strong and cools down ridiculously fast the only reason i know this is because i tig weld and you use tungsten rods
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"Is God willing to prevent evil, but not able? Then he is not omnipotent. Is he able, but not willing? Then he is malevolent. Is he both able, and willing? Then whence cometh evil? Is he neither able nor willing? Then why call him God?" - Epicurus