power of the dragon yugioh deck Tool [RGBT-EN042] Ghost Rare – Media Reload TypeMachine / Synchro / Effect Monster AttributeEARTH Level / Rank7 ATK / DEF2300 / 2500 Card Text1 Tuner + 1 or more non Yu-Gi-Oh! Master Duel Power of

This invitation comes in colorful sky, with a well-known Ash and Pikachu character

The effect is also relatively strong, but it doesn't mesh with the fact that this card is a tuner

This will likely see play for the foreseeable future unless it receives a ban for being too ubiquitous (which I think is unlikely in Commander), so you should aim to get one of these while the set is being drafted

Some like Toxrill, the Corrosive and the aforementioned Umbris seemed like really easy fits

Weavile is an obvious top choice when deckbuilding for Expanded, punishing any and all abilities on either side of the field this not only targets GX Pokemon, but EX, V, and VMAX Pokemon as well