First I said no magic buffs - so Shield doesn't count. Also, we don't have a warforged or artificer.Warforged Fighter 1, Artificer 1 has an AC of 24 base at 2nd level. Shield comes online at 4th level to get it to 29. Probably has a access to a buff spell like shield of faith for AC 31 by 4th level as well.
It's an outlier but it doesnt require any sort of mega stats to perform.
More importantly, I was talking specifically about my game, I even said "my players." My point was, it is only easy (to get sky high AC) if you allow it to be easy. Heck your talking about books that came out 5-6 yrs after the PHB. My group is still playing in the game we started when 5e came out!