For example, you could use Vhati il-Dal to reduce a creature's toughness to 1, then use Thorn Thallid to eliminate it with ease
Depending on the type, each set will normally have its own theme, either based around a particular fictional setting in the lore, or perhaps tailored to one particular mode of play, like the Commander or Modern formats
So removal or killing creatures in combat will net you Rat tokens
The restriction on historic land hurts, but there are some legendary lands and artifact lands to make up for it
In Pokmon Trading Card Game Pocket, opening either the Genetic Apex Mewtwo, Pikachu, or Charizard booster packs freely will likely set you back on your way to building a full collection and a competitive deck as each one offers different cards and different early-game rewards
Champions of Kamigawa may have legends all over the place, and plenty of them are not your commanders