orcust cards yugioh Harp Horror BLMM-EN085 Emblazoned Ultra Rare 1st Ed NM (Ready To Ship) then you can send 1 linked monster your opponent controls to the GY Orcust Cymbal Skeleton - OTS

this turn, your opponent cannot target Fusion Monsters you control with card effects, also they cannot be destroyed by your opponent's card effects

At three mana, it is a little expensive to call it a true enabler, and its not a threat on its own, but this card enables some ridiculous possibilities

You can't put a Teferi's Moat out there for a long, long time against decks unknown with the knowledge that an enchantment removal or bounce spell will almost certainly kill you unless you are very brave, and once you start down the Moat road it's hard to stop

GR Gold Rare Babycerasaurus X EARTH Level 2 [ DinosaurEffect ] ATK 500 DEF 500 If this card is destroyed by card effect and sent to the GY: Special Summon 1 Level 4 or lower Dinosaur monster from your Deck

If you dont rely on effects activated in these conditions, running this at three can help counter many of the most popular decks currently being played online