Storm being a 3 / 4 with flying and vigilance on its own would make it a solid card but the real terror comes with her Ceaseless Tempest ability, which makes it so that the next instant or sorcery spell you cast after she hits someone during combat copy it as many times as the number of spells you had already played that turn this mechanic is appropriately known as storm for those unaware
Yes, a keyword action is technically also a keyword, but it's not possible for a creature to have a keyword action without having some other ability
That also means cards that reduce the costs of activated or triggered abilities, like Zirda, The Dawnwaker, dont apply
That seems like a minor quibble, but when you only have a handful of types, your odds of having something on-hand to deal with a type weakness, or something that would suffer from one, is much higher
I've done counters with only four cards, but I just finished a Frantic Search that used thirty copies
Now you have a deck and youre all set up to play, but how do you play