Overall I feel that, while the new set will have a considerable impact on the metagame, it will not necessarily be as bad as most people envisioned it to be
Special Summon 1 "Tearlaments" monster from your hand or GY, and if you do, send the targeted monster to the GY
Blue-Eyes Dragon Roar lets you Summon a Blue-Eyes White Dragon directly from your Deck or Graveyard, or if it's been banished
Trading cards were playground currency, while the joy of pulling a rare Pokmon toy turned a simple meal into an unforgettable moment
Hitting a player directly takes cards away from security, similar to the prize card system of the Pokmon Trading Card Game
If truly sealed ones could be found, those would surely top this list with ease