what does x mean on mtg cards

what does x mean on mtg cards just wondering about this card, when it says put tokens, that both X counts together? I've not seen this before : r/mtg What does the double X

Name: what does x mean on mtg cards just wondering about this card, when it says put tokens, that both X counts together? I've not seen this before : r/mtg What does the double X
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On top of that, it can be broken with certain cards that also phase out permanents

And if 2R+X seems a little expensive for that effect, remember that its also drawing a card and dodging most counterspells along the way

Because Quirion Dryad grew with every Counterspell, every extra card drawn, every offensive or defensive play, the combination of mana suppression and relentless proactive tempo made Miracle Grow nearly impossible to beat with anything but a dedicated anti-two drop strategy, viz