(Ignore the Link part, that was a typo I accidentally left in lol)
Superheavy Samurai Mitsunari
Rank 4, Machine/Xyz/Effect. 1000/2600
2 Level 4 "Superheavy Samurai" monsters
This card can attack while in face-up Defense Position. If it does, apply its DEF for damage calculation. Once per turn, if you have no Spell/Trap cards in your GY, you can detach one Xyz Material from this card: add 1 "Soul" Superheavy Samurai monster from your deck to your hand.
Superheavies are one of my personal favorite archetypes, and during their first few years of introduction I had a lot of success with them in competitive play. Often times though, I would wish I had access to an archetypal Superheavy Samurai as sometimes the other Rank 4s either didn't offer what I needed at the time, or were inaccessible due to Trumpeter barring off all but Superheavies from being Special Summoned. The obvious play for summoning this thing that comes to mind is summoning Scales and using it to bring back Blue Brawler or Soulpiercer. The ability for the card to recycle old 'Soul' SHS cards like Soulpiercer, Soulbuster Gauntlet, Soulfirearmor and ESPECIALLY Soulpeacemaker will really help keep the deck's momentum going, along with the Xyz monster itself being a 2600 body, and the effect to search upon dying to promote a comeback option is also something I find highly useful.