The answer is 7.
Magic the Gathering contains a wide variety of organisms, such as dragon, insects. Creature is an effective means to reduce HP.
It’s a magic/spell to assist your battle. Some Enchantment stay in the field, affect the entire game.
Ancient powerful artifact. It can be creature as well. Some even has color be course of certain sorcery injected.
Like magic spell you use, they have their uses. Only when the magic and the stack there is not anything in their turn to use.
This is also a spell, but it is more flexible than spells. As its name suggests, it can be “instant” release, the opponent by surprise.
You can only use only 1 land card in every round. Players must get enough energy from their own lands in order to use relatively mana spell.
Planeswalker is your powerful ally. Your can only play Planeswalker while using spell. They are permanent and comes to battlefield with special mark.