As you use this spell, you may pay Exceed 4 as an additional use cost. (Put four cards that are underneath your LRIG into the LRIG Trash.)
Target SIGNI on your field gets +5000 power and "[Auto]: Whenever this SIGNI attacks, [Ener Charge 1]" until end of turn. If you paid the Exceed 4, instead all SIGNI on your field get +5000 power and "[Auto]: Whenever this SIGNI attacks, [Ener Charge 1]" until end of turn.
