"Cyber Dragon" + "Cyber Dragon" + "Cyber Dragon" A Fusion Summon of this card can only be done with the above Fusion Material Monsters. If this card attacks a Defense Position monster, inflict piercing battle damage to your opponent.
"Fusion Summon of this card can only be done with the above Fusion Material Monsters" what does this phrase even mean gamewise? I thoought he couldn't use Fusion Material subtitutes, bum BAM Zane summoned Hex and I lost. So this first phrase is pure bullshit! Is like putting in a trap card: "This card can only be activated the turn after it is set"
One of Zanes skills is to summon Proto per each 1000 points of damage you take. You could wait to take 3000 damage, activate the effect, poly to Cyber End and wait for Floodgate Trap Hole to say hello. Or Econ to finish you off since you'll have no monsters to defend once they take Cyber End.
However combine this with a Curse of Skin is and that's game if they can't stop the summon