If your opponents opened with an Ignoble Hierarch, Deathrite Shaman or early game Faeburrow Elder or Bloom Tender, prevent them from getting ahead more by tapping down those mana sources
Instead, he had to make due with a slightly less extreme set of threats, most of which were designed to be especially good at beating whatever the opponents best threat was (given the nature of Hypergenesis letting them play their best threat for free)
Its also worth mentioning that these are estimates based on best information
2 years ago I haven't played with Railway Brawler, and it seems good, but I'm not sure it's suited for every deck
When cast, it gives its owner the Monarch status, and if they maintain it till their next upkeep, they get to have a copy of any enchantment or artifact they choose from the board
For example, if you put Spellbook (an artifact that says you have no maximum hand size) onto the battlefield and then put Doctor Octopus, Master Planner onto the battlefield, your maximum hand size will be eight