This will effectively ensure all your creatures, including your Commander, enter play with two additional +1/+1 counters
A few of them appear to also be reversible cards
It's even more effective if you slap an aura or equipment on it
With any commander decklist there's infinite improvements, tweaks and changes to be made, so take them as a starting point (especially the mana bases, as they are based on what I own on Magic Online and not what's most competitive)
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We'll get into how they're different in a bit but first, here's the original product description from the Pokmon TCG : The Pokmon Trading Card Game: Collector Chest includes: 5 Pokmon TCG booster packs, 3 foil promo cards featuring Rowlet, Cyndaquil, and Oshawott, a cool Pokmon coin, 4 colorful sticker sheets, mini portfolio to store your favorite cards, Pokmon notebook, and a code card for Pokmon TCG Live