Sage of the Maze (Extended Art) (M3C-067) - Modern Horizons 3 Commander: (Extended Art)

: Add two mana in any combination of colors.
: Until end of turn, target land you control becomes an X/X Citizen creature with haste in addition to its other types, where X is twice the number of Gates you control. Activate only as a sorcery.
Tap an untapped Gate you control: Untap this creature.