Maybe that's the fun of a Starter Deck, I think: You've got everything you need to play the game, and now it's time to begin to learn the ropes, even if your deck isn't perfectly balanced
Then progress Terapagos ex to the Active position if it isn't already there and start attacking
With magecraft, it will trigger by either the casting or copying of an instant or sorcery spell
Full-Art Core Lands Explore the inner core of The Lost Caverns of Ixalan with the full-art lands
Why is Sylveon so valuable
Even for the baseline ability, nabbing a single extra card per turn for a minor loss of life is usually worth the trade-off, and seeing as the Confidant is usually a removal magnet early, you likely wont have to worry too much about slipping into the danger zone