It's not just creatures, either - Nahiri the Harbinger is a good example of a card that rummages every turn and has a big payoff, also
Sacrifice Outlets The best sacrifice outlets are permanents with activated abilities that cost no mana and have no timing restrictions, like Altar of Dementia and Phyrexian Altar, which provide good value on their own and enable various infinite loops
This can be a great game plan against delver or control style decks when Ad Nauseam is being removed, however is very metagame dependent
You really didnt want to read an article about how Thragtusk is the best card anyway.
Blue Uncommons Psionic Blast $40/$20 Control Magic $25/$12.50 Clone $20/$10 Air Elemental $10/Unlisted ALL OTHER BLUE UNCOMMONS $5/$1 I dont really know what puts Air Elemental on this list, but its here nonetheless
After all, the new Kamigawa set is already full of anime/manga tropes