"Koa'ki Meiru Supplier" Rating Score by とき

I have a feeling that the HQ is being taken over by the Rock faction.
If Rock on the field is sent to his GY, it has the effect of special summoning him from his hand, and the effect of searching for "Iron Core of Koa'ki Meiru" or one of its support cards when special summon is successful.
First of all, it is a self-special summon effect, but since it is a loose condition that he is sent to GY from the field, it can be used in multi. It can be used in a variety of ways, such as when it is simply destroyed, when releasing the rock Koa'ki Meiru with its own effect, when it is used for Synchro or Link, but after it is put on the field, it only uses its search effect, so it can be used in some way. I want the law.
The search effect does a peculiar search with 《Iron Core of Koa'ki Meiru》or its support card during his Special Summon. As for Steel Core Support, his Spell Trap is full of difficult-to-use cards from his early Koa'ki Meiru, but he can search most of his Koa'ki Meiru for monsters, so it might be a good idea to search for additional monsters. Special Summon has its own effect, so I want to use it. In that case, the problem is how to draw it into the hand, but will you use Vajra Core?