A good rule of thumb for deck ratios is: 15 energy cards, 15 Pokemon cards, and 30 trainer cards
As night falls, danger blossoms in the Pokmon TCG: Mega Evolution - Chaos Rising expansion
Dark Law single-handedly took HEROes from a niche fun deck, to a powerful rouge deck overnight, both of these effects are really strong and can win the user the game on their own
But for Commander and other formats, youre interested in the first three modes, which are pretty decent
There have been long-standing differences, such as Japan using silver borders for years and the English-language Pokmon TCG just now adopting it for the Scarlet & Violet era this year
I can understand the impulse to use a fake $5 Underground Sea when the only other option available (thanks to the Reserved List) is a $2,500 playset of Underground Sea