Your original request to be pointed in a direction that would culminate in understanding and being able to perform Blaine-esque effects is in direct conflict with your desire to apparently spend as little time as possible learning the basics (both of magic and presentation.)
Your desire for simple effects is an admirable one. Building a beautiful presentation around an otherwise "mundane", straight-forward effect is a wonderful thing. However, I believe you may be coupling "simple effect with a great reaction" and "easy to learn" when, in fact, the inverse is true. The more pure the effect, the more effort one often has to put in. It takes time. Let's take a simple (and I use the term "simple" tongue-in-cheek) psychological card force. It's hardly enough to, say, parrot one of Derren Brown's in order to elicit the correct card. Rather, one must learn to read their audience (is this even someone with the type of personality that will be receptive to the force?) learn how to present the force with the right cantor, cadence, and emphasis (what words will you include and stress to drive them towards the desired card?) not to mention your body position and every purposeful movement to reenforce the desired card.
That all takes time. Plenty of it. The effect is simple, and it has a huge reaction. The price one must pay is years of study and gaining experience by performing, failing, learning, and trudging onward.
A poster above noted that a key item to have in one's arsenal for the kind of straight-forward mentalism you seek is a set of balls like the King of Bayonne. Those are very wise words. I remember grabbing a copy of Building Blocks some years back at the beginning of a Luke Jermay lecture. Thumbing through, I was baffled at some of the things purported to work. Most of the effects I glanced over had me scoffing and shaking my head. Then, I saw him perform. The effects worked because everything about his performance and every single word out of his mouth weaved a tapestry of confidence that *made* them work. I still had a lot to learn (and it's worth noting that that never ceases to be the case.)
Finally, I do want to answer your question honestly, even if I suspect you're not ready for the material: You want a recommendation of a book you definitely don't already have that contains a straight-forward, impromptu mentalism effect that involves cards and uses no gimmicks? The Mental Mysteries of Hector Chadwick has a color sense effect so bafflingly fantastic that I stopped using the one from Card Fictions that's been one of my go-to effects for ten years. However, I'd strongly suggest giving 13 Steps and Practical Mental Magic both a read first, if you haven't already.