yellow card sleeves Ultimate Guard: Katana making them compatible with games such as Magic Dixit" Card Sleeves - Magnum

Each time a Machine monster(s) whose ATK equals its own DEF is Normal or Special Summoned, place 1 counter on this card

With that set at the hundreds or thousands, you can stop the game from highlighting pulled cards as high value just because its worth over ten bucks

You can only apply this effect of "Knightmare Goblin" once per turn

I admit, with the field spell, you may not have a ton of banished Phantom Knights at any one time, and the effect can be "negated" by S/T destruction, but if you resolve the card once with 3 or so banished Knights, you essentially just win right there thanks to the sheer usable card advantage