Some of the best cards in the game only cost one Red mana, like Lightning Bolt or Ragavan, Nimble Pilferer
In Disney Lorcana, ink is the main resource used to play cards and activate certain abilities
During either player's turn, when a Spell/Trap Card that targets this card is activated: Negate the activation, and if you do, destroy it
Historic itself is used as an adjective to describe other things, so on cards, you'll see phrases like "a historic spell," "a historic permanent," or on cards like Abstergo Entertainment, "a historic card." Just remember that if something refers to casting a historic spell, Abstergo Entertainment won't help you, as playing a land is not casting a spell
One of those is people confuse the two
Vaporeon ex is classified as a 4-Diamonds card in the Pulsing Aura set