This is because its a weird one that isnt really a standard looking card
take control of 1 monster your opponent controls with the lowest ATK (your choice, if tied), but while it is face-up on your field, it cannot activate its effects also you cannot Special Summon monsters from the Extra Deck, except Link Monsters
Not only can you do it, but you can also steal the opponent's rank 5 or 6 and use it as a guide
At this point, initiative is passed to the other player who may activate another card in response, adding to the chain, then passing initiative back
UR Ultra Rare Lector Pendulum, the Dracoverlord X DARK Level 4 [ DragonPendulumEffect ] ATK 1950 DEF 0 P Scale 5 Negate the effects of face-up Pendulum Monsters while your opponent controls them
For the rest of this turn after this card resolves, you cannot Special Summon from the Extra Deck, except Machine monsters with 1500 or less ATK