Where Shadows Fall, Phantoms Dwell
If you set either card from your hand, you also draw a card, and, if only your opponent controls a monster, you can play one level 5 or higher Subterror monster from your hand or deck in face-down defense position that can be flipped face-up this turn
Ungraded cards, on the other hand, can be a gamble
It has an excellent effect that increases the penetration power of triggers and obstructions, makes effective use of rotten SR in the hand, and expands the range of deployment
I Juniper away my hand and draw a fresh seven
During the opponent's Turn when a Monster declares an Attack, "The Hidden City" can flip a face-down "Subterror" Monster to not just active their effects, but negate the Attack as well