Instantaneous Explosion

Your Center LRIG gains the following ability for the duration of the game. (This ability remains applicable even after your Center LRIG is grown.

[Action] [Main Phase] [Attack Phase] Exceed 4 (Put four cards underneath your LRIG into the LRIG Trash): Put target SIGNI from your trash onto your field as SIGNI with no abilities. At end of turn, put it on your field into its owner's trash.