mtg all cards are enchantments Twinkle, Twinkle Little Star and all Auras you own attached to attacking creatures your opponents control Enchantments Matter - Card Kingdom

Once the ability of Grasping Shadows has triggered, creatures entering the battlefield attacking won't affect that ability

The majority of storm cards are designed as payoffs and win conditions, inviting players to construct the rest of their deck in a way which can chain spells together and build a very large storm count so the following payoff card is immediately lethal

Read ahead, at your own peril

5 Brightstone Ritual According to the flavor text, powerful wizards and other spellcasters covet that stone, but Goblins love how shiny it is, and this card is indeed much better for Goblin tribal decks than Wizard decks