These are the possible position-switching support cards to assist Ryu Kokki’s effect. When facing higher ATK Warrior and Spellcaster type monsters, in order to not suicide Ryu Kokki in a face-to-face combat, you can switch their position to defense mode and then attack with Ryu Kokki. Depending on the monsters DEF value, you may take some LP damage but you can destroy their monster during the end of the Damage step, and also preserve your Ryu Kokki on the field.
This card not only can be used as single tribute summon, but it can also protect Ryu Kokki for 1 time should you decide to suicide Ryu Kokki into opponents’ monsters, by banishing Relinkuriboh from the graveyard.
Good counter for Buster Blader, The Dragon Destroyer Swordsman
Let's face it. This card is ass. Why the hell it destroys at the END of the damage step? Because of that, it still gets destroyed when it crashes into higher attack. This is nothing more than a worse Yomi Ship with higher stats