mtg tax cards Land — Masters Edition III (ME3) | Card if an opponent controls more lands than you Budget Magic: $93 (13 tix)

Commander decks built around landfall, token swarms, or Bird synergies all treat it as a premium engine piece

These are typically very old cards because age tends to correlate with scarcity, especially with the Reserved List hanging around

Other options in regards to Gruul dragons matter legendary creatures seem quite limited, and the fact Vrondiss, Rage of Ancients and Klauth, Unrivaled Ancient were both in a precon not too long ago likely means they wont show up either

Pack it full of early mana ramp like Mind Stone and Arcane Signet and some Haste enablers like Swiftfoot Boots and you are off to the races

This is a solid choice for a voltron commander