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Historical Rules · 18 February 2022

Rule 711.5

Official source text from the 18 February 2022 Rules release

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If the number of level counters on a leveler creature is less than N1 (the first number printed in its {LEVEL N1-N2} symbol), it has the power and toughness denoted by its uppermost power/toughness box.

Find this number in the current Rules