Pretty sure the sword ends in a metal ring, neat but not helpful.

Handle is wrapped, could be leather (conductive thus bad for blocking lightning) or something else (which could be good or bad for non-conducting uses).

wikimon.net/images/0/09/Leomon2.jpg
https://wikimon.net/images/b/bd/Leomon.gif
https://wikimon.net/images/4/41/Leomon_tri.png

So I will go with not using the sword to block then.

I wish the weapons had more info about them, they throw out that it is magical but doesn't say how that works.