Life Shaver (KC01-EN002) [25th Anniversary Ultimate Kaiba Set]

You can only control 1 "Life Shaver". Once per turn, during your opponent's End Phase: Place 1 counter on this card. During the Main or Battle Phase, if this card has a counter(s) on it: You can send this card to the GY, then make your opponent discard as many cards as possible, up to the number of counters that were on this card.