[2023] Noob ?

Have a question if anyone can help. I'm running the Necro minion build from action rpg yt and I'm changing out my belt, altering the new one. The old belt has 9% added minion damage, I have plenty of damage on other pieces and wanna add another type of damage. He said in the video that the build is best suited with melee physical and necro damage, I want to add one of those to the new piece but I'm worried it will ruin it because it doesn't say added minion melee physical/necrotic damage. Do I have to find affix shards that say minion specifically or will they get boosted from the non minion ones? Thanks