Nothing runs away with a game beyond just drawing fewer blanks, which having Thoughtseize in your deck only helps you lose
They also need some method to finish you off, which is often a card which doesn't do much for the deck otherwise
Black decks used it to leave you without a hand thanks to cards like Hymn to Torach while they had a full one thanks to Necropotence
Force of Negation is no slouch in Commander, either, with nearly 350,000 decks running the card by EDHRECs current count
So, whats the general game of Lorcana actually like to play
1 in every 4 packs (give or take) contains a 13th card from this special list of cards in place of an advertisement or token within the pack (not counted in the 12 cards), and while some are dud commons that tie in with a sets theme, others can be quite valuable