User blog comment:RagingReaperMan/Making Decks: Need Help/@comment-24965906-20140822012621/@comment-24965906-20140822014125

For Katana, Skull Warriors basically use and recycle when you're done.

Use the Skull Warriors as your primary attackers, with Evil in Heart, Yamigitsune and Undefeatable, Setsujishi as a way to continuously recycle and gather resources. You can find the former in Set 2 with most of the Skull Warriors support, while the latter's in Set 3. In monster, you can use Kimensai, Garo-oh and Yamaihebi, cards that mostly have one turn use, along with the previous two to maximize usefulness, Gurenbu for the Crit. Try not to run the Size 3's in large numbers, as they don't really mesh well with the main goal of the deck.

Then, utilize some of the Demon Way, which are powerful yet tricky spells, cards like Return from the Underworld and Sakurafubiki. It is also advised to use Art of Explosive Hades Fall to send required units to the grave for Return or other tricks. The true advantage, if you're not a purist unlike me, is that you can still use Lethal Formation as backup traps instead of Karakurenai, which rarely sees play due to the conditions. Weapon wise, Onimaru and Elite Sword can work, as long as its when necessary.

Be careful, as Skull Warriors can't really defend monster wise, and as said earlier, spells can be really tricky to use properly. Otherwise, you're good.