Planeswalkers can protect themselves in several ways: by removing opposing creatures, by generating creature tokens that can serve as blockers, or by having a high starting loyalty that will allow them to survive an attack
Honestly speaking, theres not much your opponent can do when you swing with an 11000 power character twice on the same turn its played
Attack 2 : Gigaball 999999999 5 Take your opponent's hand
Once youve stationed it enough, you get a big flying creature that also gives you a strong payoff for sacrificing lands: dealing damage to your opponents
Dread Presence and Retreat to Hagra are a good start, and Liliana of the Dark Realms is a strong planeswalker here
Booster packs are generally priced to serve as good impulse purchases, with prices comparable to a comic book and somewhat lower than those of most magazines, paperback books, and similar items