Your main job in Gold is consistency
5 Goreclaw, Terror Of Qal Sisma Make Big Creatures Even Bigger Legendary Creature Cost: 3 Generic and 1 Green Mana Goreclaw, Terror of Qal Sisma is the first card on this list that shines in Historic Brawl as a commander for a mono-green deck
(See the aforementioned Ghostway for ideas of other ways to keep people safe.) The only issue I have (other than a mana investment) is that it's harder to build around with things like Darksteel Forge or Bloodghast (tricks you could use with an Oblivion Stone to make things unfair)
While both of these lines are sweet, and Hornest Queen and Thragtusk are great one-ofs in the deck because they are helpful in specific matchups (Hornest Queen against any creature deck and Thragtusk against aggro or burn), it's worth reiterating that the most common way we win the game is by locking our opponent out of playing Magic by forcing them to draw the same land every turn, often with very few (or even zero) lands on the battlefield
Commander, or Elder Dragon Highlander (EDH) as it was called before Wizards decided to develop for it directly, is probably the most popular casual MTG format available
Its especially strong with huge enchantments like One with the Multiverse and token engines such as Sigil of the Empty Throne, turning every miracle draw into a major spike in value