I probably shouldn't have won this series, or at least don't get to feel great about it given how much more effort into honing the deck I put in than Steven. The big one being taking out Ser Grim and putting in Archon of Absolution. Granted it was dumb to have it the original way in the first place since needing double of each color on multiple cards is just such a bad plan. It felt so much better making that switch. I'm not sure why I thought Grim was so good that it was worth the cost. But there was some consideration of Steven's deck specifically that happened (his deck being part white and it going small and wide) that pushed me into making that change (that I should probably have made anyway) which feels a little unfair. Steven's tendency not to sideboard is a habit of his, not a rule, but it means that if he can beat me without adapting his deck to mine, I want be able to beat him without adapting to his. And in the end, the Archon ended up being the lynchpin in winning the entire series. I also added a Naturalize specifically because of his equipment, which never got played and in any other context would be a given sideboard in, but here...