Koa'ki Meiru Beetle [SOVR-ENSP1] Ultra Rare

During each of your End Phases, destroy this card unless you send 1 "Iron Core of Koa'ki Meiru" from your Hand to the Graveyard or reveal 1 Insect-Type Monster in your hand. When a LIGHT or DARK monster is Special Summoned in face-up Attack Position, change the Summoned monster to Defense Position.