It is known as one of the strongest land cards of all time and so an exclusive foil version given out in limited quantities in 1993 is of course worth a ton
Bugenhagen, Wise Elder You will never play Final Fantasy s Bugenhagen, Wise Elder as your mono-green commander, but it does the boring stuff correctly in your 99: a mana dork that taps for any color, plus an upkeep trigger that draws you cards if you control a creature with power 7+
The probable best Goblin leader is Krenko, Mob Boss
You likely don't want to run too many copies of it, and I doubt you'll see many decks running the full playset, but this is an easy 2-of if ever I saw one for a variety of artifact decks
Its even good enough for Vintage Cube
You'll need even more lands beyond that to pump this creature, and so Wood Elemental may wind up pretty small for its cost