This Monster is "Grandmaster of the Six Samurai" as a young man. His Attribute is the same, his first effect is similar, and with his second effect in play, his ATK and DEF are the same; 2100/800.
The summoning effect is similar to the "Blackwing" monsters "Blackwing - Bora the Spear" and "Blackwing - Gale the Whirlwind".
This is the first "Legendary Six Samurai" monster to be announced.
This card makes an appearance in the artwork of "Six Strike - Triple Impact".
This card can be searched via "Reinforcement of the Army", "Soul Rope", and "Gateway of the Six".
If you control 2 copies of "Gateway of the Six", you can normal summon a Six Samurai Monster, then use Gateways effect to add this card from your Deck/Graveyard to your hand. Special summon him, then continue to use Gateways effect to continue moving more copies of Kizan from your Deck/Graveyard to your hand and summon them, you can also add and summon Grandmaster of the Six Samurai. Then you'll have at least four monsters with 2100 ATK.
By using 2 or more Gateway of the Six (or 1 Gateway and 1 Six Samurai United depending on the situation) and using Mass Driver, you can continue to recycle Six Samurais in an infinite loop that can create a First Turn Kill.