The contents are:

Road Warrior
Valhalla, Hall of the Fallen
Scrambled Egg *NEW!
Melchid the Four-Faced Beast
Hecatrice
Sonic Chick
Road Synchron
Gryphon Wing
Infernoid Token
Synchron Token

Scrambled Egg
Trap Normal
(1) If a monster you control is destroyed by battle or effect and sent to the Graveyard: Special Summon 1 “Sonic Chick” from your hand, Deck, or Graveyard.

Source: https://www.yugioh-card.com/japan/event/advanced_tournament_pack.php