Revealed by Weekly Jump, it’s 6 Tokens of the heroes and their ace monsters.
As can be seen, there are 6 Special Tokens, featuring:
- Yusei & Stardust Dragon
- Judai & Elemental HERO Neos
- Yami Yugi & Dark Magician
- Playmaker & Decode Talker
- Yuya & Odd-Eyes Pendulum Dragon
- Yuma & Number 39: Utopia
All six tokens come in Ultra Rare foiling.
Source: Weekly Jump