Sazhs Chocobo is one example of many, According to the WeeklyMTG stream
As another example, if my opening hand has a one-drop, a two-drop, a three-drop and four different four-drops, then I will usually bottom the worst three four-drops in the hope of drawing into a powerful five or six-drop, while keeping the cards that will ensure a perfect 1-2-3-4 curve-out
Generally speaking, I want to build my Limited decks to consistently curve out with a two-drop like Cruella De Vil - Fashionable Cruiser on turn two, a three-drop like Piglet - Very Small Animal on turn three, a four-drop like Beast - Forbidding Recluse on turn four, and five-drop like Winnie the Pooh - Hunny Wizard on turn five
Before working his way up the ranks at Wizards of the Coast starting at the company in a more promotional aspect more than 20 years ago he honed his game design skills as a member of the military in the late 90s
These three decks stand out because they cover different playstyles: balanced, aggressive, and control-heavy