I said earlier you need to know three things to do well: what your deck can do, what your weakness is, and who is the biggest threat to you winning the game
One popular strategy is eggs, artifacts which provide value when sacrificed or cracked
Brawl Legal Vintage Legal Timeless Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Legal Devil K
For every Magic player who has a 60-card casual lifegain deck squirreled away somewhere from their early days in the game, its time to redeem that starry-eyed youth and embrace Heliods solar power
Otherwise, prioritize whites artifact and counters synergies, while treating red as a toolbox full of whatever support your deck ends up needing
Nadaar might seem weird given there isnt much other dungeon synergy in the deck, but the Initiative can provide such value over time that you really just want to get it on the board