Perfect Card for Exodia
First summon it to send an exodia piece to graveyard, next destroy it with one of your own trap/spell cards, to draw another card. Balista Squad which forces you to destroy 1 monster on each side as an example. So it's an offensive move with Drawing Potential.
technically, half-right. A. Onslaught cannot be activated. Negate is usually you can still activate the card but 0 resolve after activation but in this case, not.
Optimal Crystron deck is very expensive. The best Crystron non-tuner, the best Crystron trap, extra deck monsters and additional backrow, were all released in different boxes
Reaching KoG is very easy. With enough time investment, almost any deck can reach KoG. Reaching KoG with a certain deck does not mean that this deck is good.
It's not broken. This card only summons "Vehicroid" Fusions, not "roid" Fusions. Jumbo Drill and Stealth Union are currently the only Fusions with "Vehicroid" in their name.
Different creature, it's just that on the two first years of YGO, around 20 years ago, monster designs are still lacking, they often just recolor existing design and present it as a new monster.