yugioh sealed booster boxes Crossed Souls Box this is the best chance youll have at getting todays meta Yu-Gi-Oh! Rarity Collection 5 -

The trick here is that you can use it to prevent damage dealt to you and force their attackers to engage in combat once more against other opponents

Plus I can jam some of the random Equipment I have lying around to get the occasional commander damage kill

Hurricail

Raiyuu, Storms Edge If you specifically want to build around samurai as a creature type, Isshin, Two Heavens as One definitely works, though Raiyuu, Storm's Edge is friendlier on the budget

Vishgraz, the Doomhive Vishgraz, the Doomhive makes a good number of other toxic creatures, and it can become quite the threat once youve distributed some poison counters