Miara, Thorn of the Glade and Nadier, Agent of the Duskenel can help enable this strategy, and Prowess of the Fair is essential for any deck that plans to sacrifice elves
I personally would only run it in decks that really care about a specific ability it provides
Not that a commander that draws card, is green, and produces loads of chump blockers cant grind
The list goes on, but I find it important to remind people not to put Karrthus, Tyrant of Jund in their dragon decks
It is the combination with the on cast effects of the Eldrazi which make Shelldock so abusive when compared to the rest on offer
X is available across the condition spectrum, with a damaged copy starting around $50, though heavily played (HP) cards can sometimes sell for about $40