Here are the most important rules to remember
Ramp has existed from the beginning of the game, when Timmy first realized that Wild Growth let him play Craw Wurm a turn earlier
The main goal of Torgaar's Rite is to be able to cast Torgaar, Famine Incarnate and Hidetsugu's Second Rite in the same turn, since if we put our opponent to 10 with Torgaar and then pass, something like an untapped shock land will undo all of our hard work
Its a little slower and clunkier than Id like, and Spell Queller existing makes it less likely that you can catch people, but it is worth keeping in mind
Notably, the ability to add counters triggers on any artifact creature attacking, so if you want to put all of your eggs in the Bomat Courier basket, then thats a pretty strong one-into-two curve