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Updated from time to time.
■How to learm death tower
■Sort of death tower
・primis tower(Link is jump to an alternative article)
・secundus tower
・tertium tower
・quartus tower
・quintus tower
・I-shaped tower
■Mainly tertium tower
■Primis tower
■Balancing of tertium tower and quartus tower
■Quintus tower
■I-shaped tower
■Other Links