Chip N Dale Recovery Rangers has the Flotsam/Jetsam Shift gimmick, but that high cost needs a deck build to reduce cost or control the board
Because it is in great colors to support dragons and a burn strategy
Finally, there is Sword of the Animist
While this beefy Dragon initially costs eight mana to cast, it does get cheaper for each card type among permanents you've sacrificed this turn, reliably costing two or three mana less when you go to cast it
Flying Crane TechniqueFlying Crane Technique (4,511 Inclusions, 1% of 601,699 Decks) I want Flying Crane TechniqueFlying Crane Technique to work as much as the next guy--Maybe more
The effect was situationally powerful in competitive play, allowing both players to see exactly what rewards remained and plan accordingly, but its real value was always in the flavor and presentation rather than raw competitive power