Combat Final Subterreur MACR-FR085

Activate 1 of these effects, and also, after that, place this card face-down instead of sending it to the Graveyard. ?Change 1 "Subterror" monster on the field to face-up Attack or Defense Position. ?Change 1 "Subterror" monster on the field to face-down Defense Position. ?Until the end of this turn, the ATK/DEF of 1 "Subterror" monster on the field become equal to the sum of its original ATK/DEF. ?This turn, the effects of "Subterror" cards activated cannot be negated.