https://www.youtube.com/watch?v=Z_U0IXjzg9M
This is a fun cheap Phantom Knights Deck I only made it because I already had the cards left.
If I start first I summon Dante. There are a lot of options, cockadoo, junk forward, kagemucha + any lv3 monster, silent boots with gloves or cloak.
Use Dantes effect to send 3 card from deck to gy hoping phantom cards, repeat in turn 2 if dante is still on field.
Next step summon Rusty Bardiche. Therefore you need 3 dark monster. With Dante, Armageddon and Foolish Burial at least there should be some phantom card in your gy. There are several ways: Easiest: Junk/Cockadoo/Kagemucha +Boots + cloak/gloves on hand. GY options: banish Wing, Blade or Sword to summon a knight from gy so you just need two others on hand. banish cloak to get boots on hand. If theres no trap in gy banish boots to get shade brigandine and activate instant. banish gloves to send wing to gy, activate wing to summon a knight from gy. banish fragile armor so send Wing, Blade or Sword, or a phantom knight if you have already one of them in gy. Activate Bardiche to protect yourself with blad or sword, sending to gy cloak gloves or armor
Next step summon dark requiem. Your oppenent need to have min 1 monster and 1 other card on field. Activate Bardiche send 1 lv3 knight to gy and get rank up on field. Summon Break Sword (where Bardiche points to) just like Dante OR rescue ferret (1 phantom knight and another lv3 monster), but you need two phantom knights lv 3 in gy and/or as material (you already have 1 because of bardiche). Destroy 1 card with Bardiche if he has 3 cards or more on field. Activate Break sword to destroy himself and 1 card from your oppenent, but he still needs to have 1 monster open on field. Activate Break Sowrds effect in gy and summon two lv 3 kngihts (getting lv4). Summon Dark Rebellion activates his effect even the monster from your oppenent has 0 atk. In your oppenents tunf activae rank up and summon dark requiem where bardiche points to to destroy 1 card. If you can summon Rebellion before Break Sword its fine, with break swords you can destroy 1 card which is usefull when your oppenent has a lot of cards on field.
In general: Use Leviair and Mist Claw to get back banished monsters. With twin twister send to gy what you actually need there and destroy spell traps from you or your oppenent (both can be usefull). If you dont get Dante protect yourself with a evilswarm (summon knightmare in first round is also good start). here i got Wee With and Dharc in Extradeck, beause i had them already. With them its easier to summon Bardiche. If you dont have them play the snychros and a second Cockadoo (Cockadoo+ lv 3 for coral dragon activate coral summon another card from gy than summon sky dragon) and antoher copy of dark hole and dark eruption.
I love the Legendary Hero Decks, i play nordic deck and supported them with battle of Chaos cards (thats why i have dharc). I also have a elemental/destiny hero deck but now more than the half of deck isnt from legendary hero deck anymore...
Big upgrade of the phantom deck is 3 Knights of torn scale, Burning abyss (Cir, Graff and Cherubini) but theyre "expensive"...cheaper alternative and still good support is Wee Withc, Knightmare Phoenix and Unicorn, Physic Tracker and Wheeler + Emergency Teleport.