Once they have ramped up, switch them out to prevent knockouts so you can sweep your opponents hands.
The nice thing about the Helix Fossil is that you can choose to discard it from the bench anytime you want and your opponent doesnt gain a point, and it doesnt count as a Basic Pokemon when the game is drawing you an opening hand or when you play a Poke Ball
If Roxi is on the battlefield or in your graveyard and it has an art sticker, it counts toward the total
Whats interesting to note, however, is that these cards often differ from the ones that eventually hit the market
Disclaimer: Pull rates are community estimates aggregated from documented openings totalling 228 collector packs (19 boxes)
Control Control commanders are probably most interchangeable between each other since the game plan will usually create enough board presence to survive and interact with the rest of the table while being in a dominant position most of the time