It was great because it worked well on two fronts: first as graveyard hate and then as a strong reanimation tool
In particular, Elaine wanted the team to create an official Magic product modeled after a casual player-made format called Chaos Magic. Chaos Magic is a free-for-all multiplayer format that was quite popular in 2009
Practically anything goes in Commander, and with most set Magic releases, you get even more ways to design your decks
For full details on the changes to come, check out the Treasure Chest information page
Most of my support legendary are grounded dorks, save for a key four card cycle we'll look at later, so Broodmoth should trigger pretty reliably
If trample isn't enough, Champion of Lambholt can help make your creatures less "blockable"