Breena, the Demagogue is one such card that often needs ironing out: Whenever a player attacks one of your opponents, if that opponent has more life than another of your opponents, that attacking player draws a card and you put two +1/+1 counters on a creature you control. Like the goad mechanic, this card encourages the other players at the table to attack between themselves and discourages them from attacking you
According to a rumor from PTCGPocket, the new set could also introduce a new rarity to the game, known as Rainbow rarity
Cards like Consider and Mishras Bauble, when milled, is basically just free card draw combined with Raul
For the complete OP-16 collector hierarchy covering every rarity tier, the OP-16 collectors guide explains which cards to hold long-term and how the SEC, Manga Rare, and Super Alt-Art tiers rank against each other
Fortunately, The Pokemon Company hasn't forgotten the card game's roots