One other thing before we move on to the commons and bulk
Prioritizing dual lands that can enter untapped (like the "shock lands" or "fast lands") is one of the most significant upgrades you can make to any multi-color deck
As in Constructed, everyone has access to plenty of strong cards, so you need to find ways to make your deck outperform theirssuch as utilizing synergies to make your cards more than the sum of their parts or drafting a strong mana base to keep you from stumbling
Remember, you can use Cyrus to bring forward any opponent previously weakened by Heatmor
However, cards from older sets, rare Commander staples, powerful lands, mythic rares, foils, Secret Lair cards, serialized cards, and Reserved List cards can be worth checking properly