Inzektor Hopper (GRCR-EN041) - The Grand Creators 1st Edition

Once per turn: You can equip 1 "Inzektor" monster from your hand or GY to this card. While this card is equipped to a monster, that monster's Level is increased by 4. While this card is equipped to a monster: You can send this Equip Card to the GY; the monster it was equipped to can attack your opponent directly this turn. Other monsters cannot attack the turn you activate this effect.