One of the first commander decks that I went up against was a Maelstrom Wanderer deck. All it did was ramp into Maelstrom Wanderer, who then cascaded into big, powerful creatures. That deck was deceptively powerful, and won almost every game it was a part of. I hated it with a passion for years, since I mainly played mono-blue decks with little to no creatures. Well, that was long ago and far away. Now I know who freakin' fun it is to play the big ole cascading crab!
This deck is very easy to play. You simply play lands, ramp spells if you have them, and then play Maelstrom Wanderer. If you have good creatures to play before you can cast him, then play them! All of our creatures are good, and most of them make great offensive threats. Why do we prioritize casting Maelstrom Wanderer whenever we have the mana to, you ask? Well, not only does he usually get us two stompy threats onto the battlefield for free, but he also gives all of our creatures haste, including himself! I can't tell you how many games that I have played when I cast Maelstrom, get creatures like Pathbreaker Ibex and Siege Behemoth, and proceed to kill a player who asks "Wait, how do they have haste!?".
And if Maelstrom Wanderer dies, no problem. You want to recast him, so he can quickly build your board up with more threats! You will most definitely have the mana to recast him 90% of the time.
So our deck is primarily split between ramp spells and big creature spells. Casting mana-efficient ramp cards like Farseek and Three Wishes pushes us towards Maelstrom Wanderer quickly and stealthily. Cards like Goreclaw, Terror of Qal Sisma and Ashaya, Soul of the Wild serve as both rampy and stompy cards. We have a few such dual-purpose creatures. Our most powerful rampy/stompy creatures in the deck are probably Klauth, Unrivaled Ancient and Nyxbloom Ancient. Klauth is just...busted. I couldn't believe when I saw his textbox. He can easily make 40+ mana in any combination of colors from a single combat. And well, everyone knows that the triple-mana Nyxbloom is uber-strong.
Despite this deck being focused on ramping and stomping, there is a large amount of disruption in it. Some of our creatures, such as Phyrexian Ingester and Kogla, the Titan Ape let us get rid of problematic creatures when they ETB. Other creatures like World Breaker and Bane of Bala Ged give us repeatable ways to remove our opponents' threats. We have a few more traditional spells to interact with our opponents, like Force of Vigor and the classic Aether Gale. But for the most part, our badass creatures are more than enough to mess with our opponents' game-plans.
Koma, Cosmos Serpent can literally lock certain opponents out of the game by tapping down their lands and even shutting down their planeswalkers on their upkeep. And yeah, I put one of the most toxic creatures in EDH in my deck...Vorinclex, Voice of Hunger. He doubles our mana and ices over our opponents' lands when they use them. I can't even cascade into him, since he is eight mana. He is, at worst, a spiteful pet card. And hey, let's not forget about the most destructive green creature in EDH, Bane of Progress. He usually comes down and destroys 6+ permanents, significantly altering the course of the game. I call him the most powerful green creature of EDH, since the format is so artifact-heavy.
This deck is STRONG. It may not look like it on paper, but when you play it, you will be blown away by how easy it is to win. There is no need for grand strategizing or politics. You simply play your cards, play your commander, and run over your opponents. It really is that simple. If ramping into beaters appeals to you, then this is definitely the deck for you.