japanese pokemon celebrations booster box the first pack of Pokémon TCG cards was opened in Japan Terastal Festival ex [Japanese] Pokemon

The gauge also outputs a 0-5 volt analog signal that you can feed into a datalogger or standalone ECU, so you're not just watching boost on a gauge, you're logging it and you can review it later to catch boost spikes, leaks, or wastegate control issues

The second change was cutting Pyroclasm for the second Engineered Explosives

negate the next attack this turn from a monster your opponent controls (this is a Quick Effect)

In my own personal deck, I once had a duel where I combined this with the Spell Card "United We Stand", a card that gives the equipped monster 800 extra attack for every other monster you control and thus I turned this vanilla monster card into a pretty powerful beatstick