If you own the right lands, you can put yourself at a ridiculous advantage over your opponents
Roar of the Fifth People makes you bodies, ramps you, tutors a dinosaur and then just kills your opponents
Its worth noting that, as the name suggests, they really are packs for collectors, as (except in exceptionally rare instances and only in specific sets) you wont find any mechanically unique cards in these booster packs
White can offer cheap chump blockers, but Llanowar Elves can do the same thing without adding an extra color and while providing mana.
It creates creature tokens, so you get free attackers and threats on board which hopefully trade at least 2 for 1 with your opponent
If you do think you're ready to construct your own Lorcana deck, here's what you need to know: Ink types A Lorcana deck can only use one or two ink types