Inkmoth Nexus is a mythic Land card from Edge of Eternities: Stellar Sights (EOS), collector number 20. Current market price: $12.80 (foil $15.79), TCGplayer market prices via Scryfall.
{T}: Add {C}. {1}: This land becomes a 1/1 Phyrexian Blinkmoth artifact creature with flying and infect until end of turn. It's still a land. (It deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)