It’s either from WJ or VJ. We don’t know if there’s going to be more.

The Phantom Knights of Silent Boots

DARK/Warrior/Level 3/200/1200

1. If you control a face-up “The Phantom Knights” monster, you can Special Summon this card(from your hand). You can only Special Summon 1 “The Phantom Knights of Silent Boots” this way per turn.

2. You can Banish this card from your Graveyard; Add one “The Phantom” Spell or Trap Card from your Deck to your hand. You can only use this effect of “The Phantom Knights of Silent Boots” once per turn.

Source:

Maxut