Sword of Light and Shadows best use will be returning those free evoke creatures like Fury and Grief to your hand to cast again
Although Wizards has not tried unbanning cards from any of its Magic formats before this, the potential of the idea has been floated for years
Abilities and counters are two different parts of how a permanent works
On top of that, you may also want to include some creatures that ramp such as Solemn Simulacrum , Burnished Hart, Palladium Myr, etc
Yet, it is important to find some value out of those cards when using a Starter Deck, typically their Challenge ability, as vanilla cards have decent statistics for their cost
Mirri, Weatherlight Duelist Mirri, Weatherlight Duelist performs best in decks that go wide with big creatures