Cyber Blader

"Etoile Cyber" + "Blade Skater"
A Fusion Summon of this card can only be conducted with the above Fusion Material Monsters. While your opponent controls only 1 monster, this card cannot be destroyed by battle. While your opponent controls only 2 monsters, double this card's ATK. While your opponent controls only 3 monsters, negate the effects of your opponent's Spell, Trap, and Effect Monster Cards.