If one or more +1/+1 counters would be put on a creature you control, twice that many +1/+1 counters are put on it instead.
Weakness is not in the nature of the Swarm.
Live market data
$0.59 – $0.93
Nonfoil $0.59 Foil $0.93 Cardmarket €0.32
TCGplayer & Cardmarket market price
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