With the upcoming Scarlet & Violet: Temporal Forces expansion, another old mechanic is making a comeback, but its much more straightforward
Transdimensional Scout When this creature deals combat damage to a player, you may pay and sacrifice it
So as you can see, the trick is not just to spot cards with low sentiment in some absolute sense, but low sentiment relative to what it would be if the card were fairly priced
Haxorus Haxorus, belonging to the BREAKthrough expansion is one card that does some justice to the Dragon archetype
4 Riverpyre Verge 4 Spirebluff Canal 4 Steam Vents 4 Monument to Endurance 4 Artist's Talent 3 Mountain 2 Iroh's Demonstration 2 Quantum Riddler 1 Fire Magic 1 Agna Qel'a 1 Impractical Joke 4 Price of Freedom 3 Colorstorm Stallion 2 Three Steps Ahead 2 Pit of Offerings 2 Quantum Riddler 1 Spell Snare 1 Thor, God of Thunder Izzet Lessons is a control deck built around a dense suite of Lesson cards, many of them efficient removal spells