Wall of Roots is a Green mana dork, that doesn’t function like a traditional mana dork. Unlike traditional dorks it can both provide mana and be a blocker. Making this Plant Wall the Card of the Week.
Wall of Roots is a 0/5 Plant Wall Defender for 1G mana. Unlike traditional mana dorks that tap to produce mana, instead you place a -0/-1 counter on it instead. The oracle text can be found here.
During the early turns of Commander games most decks are looking to do the same thing, Ramp. They are looking to advance their boards and set themselves up for later turns. Wall of Roots is great in that respect, at 2 MV you can play it on turn 2 which is when you want to be ramping. Additionally it can provide mana the turn it comes in, due to its unique ability. This means that your turn 2 you can tap 2 lands to cast Wall of Roots, put a counter on it and cast a 1 drop. As you don’t need to tap it to produce mana it can also be a blocker and even as a 0/3 or 0/4 it will stand up to most early game aggression.
Although you can only activate the ability once per turn you can activate it in everyone else’s turn as well. This means that you can cast a Fog or a Wordly Tutor, whilst appearing to be tapped out. Additionally as a Creature it also synergises well with Green card draw which tends to be creature based.
The only downside is that it gets weaker the more mana that it produces. It also puts itself on a clock as it can only produce 5 mana. Without additional +1/+1 counter synergies, which is roughly what you would expect a traditional mana dork to produce.
Wall of Roots would be a great addition to any deck that is running Green, particularly if it has additional Creature synergies. It’s best commander is probably Doran the Siege Tower, I personally run Muldrotha the Gravetide as well as in many other decks. It would also work well in: Animar, Soul of Elements; Prossh, Skyraider of Kher, or Prime Speaker Vannifar.