Shiro's template is also very useful when it comes to learning magic. In DXD, magic relies on math. Shiro's brain is so ridiculously powerful that it makes the most powerful supercomputer in the world look like a graphing calculator.
NGL the templates are the only reason why I'm not fully invested, do not know the 2 templated characters and I watched "No Game No Life" so long ago I only remember the gotcha moments when the MCs turned the tables.
