Gameplay mechanics because Imperial Iron Wall prevents Rappa Chiyomaru's effect (banishing an S-Force card from hand {or GY in case of Chase and Retroactive} to bounce herself to hand and then special summon an S-Force monster from main deck) to activate. In other words, she can't "escape" from him.
Gameplay mechanics because Imperial Iron Wall prevents Rappa Chiyomaru's effect (banishing an S-Force card from hand {or GY in case of Chase and Retroactive} to bounce herself to hand and then special summon an S-Force monster from main deck) to activate. In other words, she can't "escape" from him.