Here's a Normal Trap that messes with your opponent's linked monsters, which means that either are being pointed to, or are the ones pointing to a monster, it negates those cards and also prevent your opponent from Special Summoning to zones they point to. That is neat in and of itself, but it is also a Pseudo-Trap monster, that Special Summons itself to an opponent's zone a Link Monster points to, and when it does, it blows up monsters adjacent to it, so even if your opponent plays monsters to other zones, you can put this in the zone the Link Monster points to and destroy those new monsters while locking down your opponent's plays for that turn.
This turn, your opponent cannot Special Summon monsters to zones Link Monsters point to, also negate the effects of all linked monsters your opponent currently control. If this card is in your GY: You can Special Summon this card to your opponent's zone a Link Monster points to as an Effect Monster in Defense Position, but banish it when it leaves the field (Plant/DARK/Level 9/ATK 0/DEF 2300). (This card is NOT a Trap.) If Summoned this way: Destroy all monsters adjacent to this card. You can only use each effect of "Deep Woods Nightmare" once per turn.