"Chaos Ancient Gear Giant" Rating Score by ミシガン州知事

Ancient Gear's trump card.
His weaknesses are the weight of the materials and being subject to monster effects outside of the Battle Phase.
That's pretty much all there is to it's weaknesses.
It's the fate of large monsters that it's hard to get out, but if you specialize, you can get it out.
During the Battle Phase, the opponent cannot use monster effects under any circumstances, so Lightning and Honest countermeasures are perfect.
Since spells and traps do not work from the beginning, falling into the abyss will not be swept away by a torrent funeral, and the mirror force system will not work.
Of course, even the system down, which is the fate of the Machine, is not effective, so in the current environment, "a machine that is immune to system down" is a strength.
If 《Skill Drain》is activated after this card is played, it's not a bad idea for the opponent.
Since it will not be interrupted during the Battle Phase, it will almost certainly pass through all-round attacks.
This is the strongest answer to the opponent who develops in large quantities.
Since he has 4500 ATK, if you're aiming to destroy him in battle, you'll have to attack him with a monster that has a higher ATK than this, so it's very painful.