The way it works, is when Thassas Oracle enters the battlefield, you get to look at the top X cards of your library, where X is equal to your devotion to blue (how many blue mana symbols appear in the casting cost of all permanents you control)
And it remains an important part of Pokmon trading items history
Copy Enchantment Copy Enchantment Ravnica: City of Guilds, Rare With a name like this, I expected Copy Enchantment to be a reprint of a weird Alpha card with 15 lines of rules text: While playing Copy Enchantment, declare an enchantment in play on either side
(11/8/2024) If a permanent card in your library has no mana symbols in its upper right corner (because it's a land card, for example), its mana value is 0
With all this in mind, lets see some of the best options out there