There are strong mono-red decks of course
Its nothing game-breaking, of course, but this card would have been plenty strong if it transformed into a regular ole Plains, so this makes it even better
With all sorts of ways to reanimate and regenerate him with other Zombie-related cards, you can maximize Thraximundar's power turn after turn without dropping momentum
He noted that there was a gap, as only the colors were covered, so Jules volunteered to monitor the colorless cards, most often artifacts and landsbut we did have some sets with Eldrazi coming up at the time
At the beginning of the end step, sacrifice Underworld Breach
Urza, Lord High Artificer on the other hand, frequently sees play in the command zone, and I think his salt is almost entirely due to how easily breaks the symmetry of cards like Winter Orb and Static Orb