Klawf loses a ton of cards Double Turbo Energy, Energy Lotto, Switch Card, Radiant Sneasler, etc
While this is useful, whenever a Dragon enters the battlefield under its owner's control, this artifact gains a gold counter
Brimaz is a payoff for casting Phyrexian spells and artifact spells alike, and its Incubator tokens generate many artifacts for you to play with or to build around
An opponent with a lot of playable cards may also commit to adding 510 extra cards to their deck after game 1, so dont count on it working the same way after sideboarding
The funny thing is your opponent not knowing what your direction is and maybe, doing a bad mulligan
A 2/2 with vigilance, trample, reach, ward, AND immunity to counters is insane