With some 'wibbly wobbly, timey-wimey' mechanics that allow players to set up spells to fire in future turns and every incarnation of the Doctor using different abilities, this set is a must-have for fans of the classic sci-fi series.
Being unable to untap your lands is necessary to keep up with other players, but this can be a great late game card to give you a boost of value
After it became obvious that land destruction(s) will take place, almost certainly with collateral damage, Crucible of Worlds is necessary
If your opponent is reluctant to engage in combat, and they should be, look into enrage and pingers to ensure you give your opponent at least 1 point of direct damage
But its also bringing in some new Legends: Z-A Megas
Once you have learned one starter thoroughly, branching into a booster-supported archetype is a natural next step that builds on fundamentals you already understand