Some of them are cards like Aeon Chronicler and Body of Knowledge whose power scales with the number of cards in your hand
Personally, I play this card in Commander decks that care about manipulating the top of my deck
A control deck which reliably draws three cards a turn and runs 45 Lands can probably skip ramp altogether in favor of more interaction
The flyer is on curve from anything, and then you can sacrifice to force the foe you just punched to not cast nondorks until your next turn, so that counts their turn as well as everyone else in a multiplayer game
Fortunately, the cost for this deck isn't that big, you can get it for under 30: Kamigawa: Neon Dynasty Commander Deck - Upgrades Unleashed- 29.95 at Magic Madhouse Kamigawa: Neon Dynasty Commander Deck - Upgrades Unleashed- $33 at Amazon US Universes Beyond: Warhammer 40,000 Commander Deck Necron Dynasties Okay, this may be a bit more than 40 but Magic: The Gatherings Warhammer 40,000 decks are absolutely amazing and great for newcomers to the game
As long as the enchantment has those counters, your creatures will enter with that many additional +1/+1 counters