Special Summon this card as an Effect Monster (Rock-Type/LIGHT/Level 4/ATK 1000/DEF 1800). (This card is also still a Trap Card.)
While this card is an Effect Monster, if another Trap Card you control that is a monster would be destroyed by your opponent's card (either by battle or by card effect) and sent to your Graveyard, you can Set it in the Spell & Trap Card Zone instead.