In the right deck, this means you'll be swinging in with something that was previously a 1/1, and could flatten your opponents
Since nothing can respond to its revival, the opponent cannot chain Called by the Grave to banish it if it activates
If the omen gets countered, it goes straight into your graveyard
The Prime Catcher allows you to swap one of your opponents Benched Pokemon with their active mon, requiring you to do the same with one of yours
While there isn't a one-size-fits-all formula, a common recommendation is to aim for around 20 Pokemon, 20 Trainers, and 20 Energy cards
Something that also worked in Pokmons favor was that their last two sets, Twilight Masquerade and Stellar Crown, both had been fairly popular sets after the first five sets of the Scarlet & Violet era cards had been priced and sold much lower than MSRP and were usually close to distribution cost for stores at launch