3 Level 4 monsters

When this card is Special Summoned: You can target 1 monster your opponent controls; this card gains ATK equal to that monster's current ATK. If your opponent controls more cards than you do: You can detach 1 Xyz Material from this card, then choose 1 unused Monster Card Zone or Spell & Trap Card Zone; while this card is face-up on the field, that Card Zone cannot be used.