yugioh science deck Structure Deck: Yugi Muto | Yu-Gi-Oh! Wiki 98 nonfoil cards) Scientists AND DINOSAURS? HELL YES

[/spoiler] [spoiler=lore] Once per turn, you can tribute 1 "Enchantress" monster you control, except this card, to Special Summon 1 Spellcaster-Type monster from your Deck with a Level less than or equal to that Tributed monster

Wheel of Fortune The Wheel of Fortune is even cheaper than a CE Time Vault, who knew

As you cast a tiered spell, you choose one of its modes to play and pay the associated additional cost to do so

Additionally, when Bruvac and Mesmeric Orb meet, the proportionate parts of the artifacts intended use are completely inverted

Its almost comparable to buying a piece of something (like a stock or a fractional share), but with the caveat of diminishing, damaging, or destroying the actual item in the process