Planar Nexus is a rare Land card from Modern Horizons 3 Commander (M3C), collector number 80. Current market price: $9.73, TCGplayer market prices via Scryfall.
This land is every nonbasic land type. (Nonbasic land types include Cave, Desert, Gate, Lair, Locus, Mine, Power-Plant, Sphere, Tower, and Urza's.) {T}: Add {C}. {1}, {T}: Add one mana of any color.