"Black Horn of Heaven" Rating Score by みめっと

This is also Counter Trap, a variant of horn that can stop Special Summons from 1 monster and Special Summons from EX at no cost.
The range is narrower than a normal horn, and even a Special Summon that doesn't trigger can't stop the P Summon when two or more monsters are Special Summoned at once, but many other Counter Summons, including God Trap There is no cost required by Trap, and the biggest selling point is that it can be activated from a single card and accepts jobs at a low price.
Besides, if he uses a card that requires him to keep paying LP significantly or continuously, I would like to keep it in mind as one of the options for Counter Trap.
With paper-based OCG, even if there is a cost, it may end up giving priority to notifications with a wide range of support, but in Master Duel, the performance is more than sufficient to be used as a substitute due to its rarity. You can say that.
Postscript: A dedicated searcher that can search for this card has appeared with the Pendulum Monster's Pendulum Monster called Harvest Angel of Doom that appeared in the January 2023 regular pack.
This card itself was originally a fairly easy-to-use Counter Trap with no peculiarities, but it can be said that the addition of originality is a tailwind.