Introduction to Phantom Knights
Phantom Knights is an archetype that focuses on its GY effects to generate advantage via searching cards, sending them to the GY, or Special Summoning from the GY, and a secondary gimmick of trap monsters (which are rarely used outside one monster in particular). They primarily focus on making Rank 3 and 4 Xyz monsters in addition to providing materials to summon Link monsters.
One option is to use Loading... to lock the opponent out of using the Extra Deck. Since the addition of Loading... , this option has become much stronger, since you don't have to rely on just Loading... to destroy Scythe, and can setup the lock much easier even if you get hit by interruptions. The Adventure Engine also can help in insulating your plays from interruption.
For non-Adventure versions of the deck, turn 1, Phantom Knights put up negates with monsters like Loading... , Loading... , or Loading... , while on subsequent turns, you want to OTK by using monsters like Loading... or Loading... . but it no longer is an effective auto-victory, especially against decks like Eldlich, and thus, is not included in this article.
Thanks to to the unbanning of Loading... and the release of Mikanko, an alternative playstyle has emerged that aims to use Loading... to access Loading... and Loading... to gain access to Synchro monsters, and further extension for a harder to break endboard containing Loading... , Loading... , and Loading... .
The Phantom Knights of Torn Scales
The most important main deck Phantom Knights monster. It is a Loading... for any Phantom Knights, it discards for cost, which means you can get Phantom Knights cards from your hand into the GY, and it revives itself when a Phantom Knights card is banished as another extender.
The Phantom Knights of Silent Boots
Silent Boots is our typical extender from the hand, since it can be Special Summoned whenever there is a Phantom Knights on your side of the field. In the GY, it searches for a Phantom Knights Spell/Trap, which is usually used to search for Loading... .
The Phantom Knights of Ancient Cloak
Ancient Cloak is our monster searcher. We need to get it to the GY, which is usually achieved via the Loading... effect of Loading... or Loading... . It is also a decent Normal Summon if we happen to have another Level 3 extender in the hand.
The Phantom Knights of Stained Greaves
Stained Greaves is another extender in your hand if you Special Summon a Phantom Knights monster, and can be used to Special Summon a Phantom Knights from your hand if it is in the GY.
For Adventure variants of the deck, some people elect to cut this card, because it can be kind of a brick in your opening hand, and weaving it into combos can be awkward at times.
Reinforcement of the Army
Since Phantom Knights are Warriors, and Loading... is a free card, there is really no reason not to run this card to serve as an extra copy of any Phantom Knight you might need.
Foolish Burial sends any monster from the deck to the GY, which can be used to send a Phantom Knights monster you need to the GY, or to send Loading... to the GY to get the Adventurer engine online.