turtwig pokemon card mcdonalds 4/25 Holo (McDonalds Collection 2021) + 1x TitanCards® Toploader Toys & Games [1GG] Razor Leaf (50) Weakness / Resistance / Retreat Cost Is this a card error?

That's because they affect the total cost of the spell, not its mana cost

While it feels tailor-made for answering threats that are difficult to remove, it can also be used to shuffle any annoying artifact or enchantment back into its owner's library and disrupts the topdeck manipulation that you'll see in many popular decks

Obviously it is at its best against decks using cheap dorks but is fine against anything and highly playable in agro or control

This card essentially allows players to treat their Graveyard like a second hand , forcing opponents to consider not only what they might play, but also to remember what they've already played when formulating their strategy

You could stick Reality Smasher in this slot as well, but the truth is that there are enough unique Eldrazi decks to make Thought-Knot Seer a true format staple