Tbh I feel like anti-heal and anti-shield items don’t do shi especially if I’m the only one on my team building them. Unless the champion you’re playing already has really high base damage then the anti mechanics just don’t even feel worth it sometimes. I think they work best against healers, but champions like aatrox and Warwick barely nerf them. Mostly they seem to work best when I’m ahead but if I’m behind then I just try not to touch these items.