My urge is to steer clear from activated abilities unless they are really worth the cost (such as Necrotic Sliver)
Its the latter use case that makes this card look particularly exciting
For players who want to play Cloud, Planet's Champion or Sephiroth, Planet's Heir decks, the Starter Kit is a great choice
This five-mana red and white planeswalker comes in with four loyalty, can create 3/2 spirit tokens, allows you to Discover with a value of four - which means you can cast the next nonland card in your library with a mana value of four or less for free - and lets you exile cards from your graveyard to gain mana, then cast those cards if you want to
This steady recursion aligns perfectly with the best black cards in MTG that reward sacrifice, self-mill, and death triggers
This card functions similarly to Nimble Obstructionist, allowing you to counter activated or triggered abilities, except the ability comes stapled to a 3/2 body as an enters-the-battlefield effect