There are slightly fewer female planeswalkers, but the median female planeswalker gets one more appearance than the median male planeswalker. Whether that counts as parity is up to you.
Being in the Lorwyn 5 or the Gatewatch gets you significantly more cards than usual. Unless you're Teferi.
Also, not a new observation, but we need more nonbinary planeswalkers who aren't assholes or tragic figures.
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