Equip only to a "Gimmick Puppet" monster. Once per turn, when the equipped monster declares an attack: Send the top card of your Deck to the Graveyard. If that card is a Monster Card, this turn, the target of the attack cannot be destroyed by battle and the equipped monster's maximum number of attacks is equal to the Level of the sent monster, otherwise, negate the attack and end the Battle Phase.
Looks hilarious for some sort of Monster Mash.
I really wish we'd get the other Gimmick Puppets, not just the Numbers.