Trap of Argalia: Down with a Touch! (触れれば転倒！, Furereba Tentō!?, localized as "Touch it and Fall!"Link) is a shining, ornate golden lance that belonged to Argalia, a knight and prince of Cathay, that was later taken by Astolfo as one of the many treasures obtained through his escapades. "Carelessly named" and nicknamed just "Argalia", it is a spear with a low killing-ability that acts only as a cavalry lance unstrengthened by magecraft, unable to pierce through all defenses, and lacking any special killing blows like always piercing the heart. Although it will still cause the enemy to bleed and kill them should it penetrate their heart, killing is not its primary intent, but it does prove deadly in battle.
It was Argalia's beloved lance, said to cause anyone it touched with its golden tip to fall, bringing him much glory in jousting tournaments and upon the battlefield where heavily armored knights would be led to their inevitable death should they fall. During a jousting tournament in which he was victorious against all the knights that challenged him in jousting matches, including Astolfo, Argalia ran away from a knight who refused to surrender after being knocked off his horse, someone that Argalia reluctantly fought with his own sword without using his lance but ultimately couldn't match him in combat, and he left his magic lance behind during his flight.
While the entire jousting contest was thrown into total chaos, Astolfo, who had broken his own lance, noticed Argalia's lance and silently borrowed (stole) it. Naturally, Astolfo won match after match in jousting contests afterwards. After Astolfo managed to survive through several battles with this lance, he entrusted this lance to the female knight Bradamante, the cousin of Roland. Naturally, Astolfo freely gave away such a precious lance because he didn’t know about its ability at all.
The spear's only function is to realize its legend by returning its target to Spiritual Form below the knee when the target is a Servant. It is able to hit anywhere on the target's body, even armor woven from magical energy, and physically cut the supply to the affected part of the body. With a "wound" attached to the legs of the spiritual body, it is temporarily rendered as impossible to take form as flesh and blood, a "bad status" of "falling". It possesses an extremely strong compelling force that can “even topple a giant.” When used against Adam, it created a surreal scene where the giant tumbled into the air as if it had comically stepped on a banana peel. It can only be remedied with a Luck Check, and although failure will cause "falling" to linger, it is not hard for it to pass due to Luck readjusting itself upward, allowing them to recover in a short period of time. It is not very effective against enemies like Spartacus who will simply continue to drag themselves forward to defeat their foes.
In Fate/Grand Order, it is treated as a Skill in gameplay.
 Fate/Apocrypha material - STATUS: Rider of Black, p.024-025
Master: Celenike Icecolle Yggdmillennia
True name: Astolfo
Alignment: Chaotic Good
Noble Phantasm: C
■ Magic Resistance: A
Cancels all magecraft A rank or under. As a matter of fact, Astolfo cannot be injured by modern day magi.
Because of the Book Noble Phantasm, Rank was greatly elevated. It is usually D rank.
■ Riding: A+
Riding Ability. Can ride beasts that are Phantasmal Beasts and Divine Beasts. However, Dragon Kind is not applicable.
■ Evaporation of Reason: D
Reasoning is disappearing. It is impossible to keep any secrets.
Carelessly chatters about own team's weaknesses and True Names, forgetful of important things, etc. A kind of extreme curse.
This skill also serves as "Instinct." During battle one is able to, to some extent, feel the optimal course.
■ Monstrous Strength C-
It is possible to rank-up Strength.
However, in the situation that this skill is activated, every 1 turn that passes damage is taken.
■ Independent Action: B
Ability that allows the magical energy from the master to be cut off and be independent.
In the case of B rank, can last two days in the current world without a master.
■ La Black Luna - Panic Calling Magic Flute
Type: Anti-Army Noble Phantasm
Maximum Targets: 100 people
A hunting horn that fires a magical sound similar to the roar of a dragon and the neighing of a divine horse.
Existences present inside the range are slammed by the force of the explosion of sound.
In the situation that the target's HP is less than the damage, it becomes dust scattered in the cardinal directions.
Granted to Astolfo by the good witch Logestila it was used by Astolfo to drive away a large flock of Harpies.
Most of the time it can be hung at the hip. When using it is big enough to encircle Astolfo.
■ Casa Di Logistilla: Destruction Declaration
Type: Anti Unit (Self) Noble Phantasm
Maximum Targets: 1 person
Inherited from a certain witch. A book with the records of the means to shatter any magecraft. The one who owns it can automatically chance A rank magecraft and below. Besides Reality Marbles, as far as things extremely close to High-Thaumaturgy are concerned, one must release the book's true name and read the book and it becomes possible to break.
■ Trap of Argilia - Touch Then Fall!
Type: Anti-Unit Noble Phantasm
Maximum Targets: 1 person
Lance of the knight, Argilia. Has a golden tip.
Killing ability is low although wound is attached to the leg of the spiritual body. To come back from falling, a LUC check is necessary. In the case of a failure the bad status "falling" continues to linger.
However because LUC re-adjusts itself upwards, it's not hard to succeed.
■ Hippogriff - Phantasmal Horse Not Of This World
Type: Anti-Army Noble Phantasm
Maximum Number of Targets: 100 people
Top half is a Griffon, bottom half is a horse. A Phantasmal Beast that's essentially an "impossible" existence.
Inferior in rank to a Griffon from the Age of Gods. It's demolishing attack due to it's run is equal to an A rank physical attack.
Essential regarded as "improbable," because it is born from a Griffon and a Horse, it's existence is incredibly vague. For only a moment, it is able to place itself in an interdimensional rift.
Therefore, it is able to phase through every single attack.
 Fate/Apocrypha material - Encyclopedia: Down with a Touch! [Noble Phantasm], p.177-178 [T]
Down with a Touch! [Noble Phantasm]
Trap of Argalia. The second cheat Noble Phantasms of Rider of Black. It is a golden lance that originally belonged to Argalia, a knight of Cathay. With this magic lance that knocks down all those that it touches, Argalia was victorious against all the knights who challenged him in jousting matches, including Astolfo.
However, one knight didn’t surrender after being knocked off his horse and drew his sword. Reluctantly, Argalia fought him with his own sword without using his lance, but he couldn’t match the knight and ran away in the end. Argalia had trusted in the power of his magic lance too much, and so he had promised that the one who beat him would be presented his older sister Angelica (the beautiful woman who was the cause of Roland going mad later on).
Angelica also understood how bad the situation was once she learned of her younger brother’s defeat and so disappeared into hiding, and while the entire jousting contest was in total chaos, Astolfo, who had broken his own lance, noticed Argalia’s lance, remarking “Ah, so there was a lance lying around here”, and he sto… silently borrowed the lance.
Naturally, Astolfo won match after match in jousting contests afterwards.
The Noble Phantasm “Trap of Argalia” is a lance, but its actual power is very low. However, when an opponent is touched by the front tip of the lance, they will be forced into a state of falling down—in other words, their legs are forcibly changed into spiritual form. Of course, this is only temporary (after all, they are only forced into a state of “having fallen down”), and they can recover in a short period of time, but just as demonstrated in the third volume, it possesses extremely strong compelling force that can “even topple a giant”.
Incidentally, after Astolfo managed to survive through several battles with this lance, he entrusted this lance to the female knight Bradamante, the cousin of Roland. Naturally, Astolfo freely gave away such a precious lance because he didn’t know about its ability at all. As for how he kept winning in jousting matches, he apparently thought, “I ‘awakened’ the power unconsciously sealed inside me!” How awful.