Efficient Construction is not the only card with this effect as there have been lots of cards that create artifact tokens when you cast an artifact spell
It's a format that uniquely focuses on teching and meta calls far more than any other Black & White format, which makes it hard to build a gauntlet for
In addition, in the metagame there are some popular Pokemon VMAX present in the format, such as Flying Pikachu VMAX and Ice Rider Calyrex VMAX, and for these cases I decided to bet on two more techs so that Gengar VMAX will be able to reach 310 or 320 damage if necessary, which are Single Strike Energy and Galarian Zigzagoon
Youll be losing life in order to draw cards, so youll want to keep an eye on your life total
These combos often use pieces like [[Senseis Divining Top]], [[Helm of Awakening]], and [[Underworld Breach]] to create deterministic wins