Walmart soft-bans hard
Merry, Warden of Isengard + Pippin, Warden of Isengard The cards Merry, Warden of Isengard and Pippin, Warden of Isengard were designed to be partners, so it makes most sense to look at them together
In this case, its cards have different values depending on the orientation in which you hold them, and there are some interesting differences in how cards are played and handled
Here are some of the best: Any of the (10) DUAL Lands from A/B/U and Revised Volcanic Island, Underground Sea, Tundra, Tropical Island, Savannah, Plateau, Badlands, Taiga, Bayou and Scrubland
However, if you control your commander as you start casting Ancestral Communion but don't control your commander by the time you finish casting it (perhaps because you sacrificed it to activate a mana ability), Ancestral Communion's first ability won't trigger
its low cost and scaling with the number of legendaries means that ideally, you should play Mox Amber as early as possible