If you were ever wondering why Kamigawa: Neon Dynasty packs sell out very quickly, one of the reasons is the fact that the most valuable cycle in the set is available at Rare, rather than Mythic
You often won't take life totals to zero, but instead take them out through commander damage
Bastion Protector, Inquisitor's Flail, and Nemesis Mask all but ensure combat will go your way every turn
Chuck a few deck boxes in your bag and figure out what you want to play when you arrive
One last rule on the way out the door: if you are ever on the fence as far as the number of lands you should play, you'll have more success if you play one land too many than one land too few
Crack a big Sphinx's Revelation or resolve Beacon of Immortality first, and now you're milling 80, 100, 120