When you control seven or more Thrulls, sacrifice Endrek Sahr
The only downside is that doing this locks you out of card sets, including monster sets, for the turn
There are other DLC packs for the original series, mostly involving the Waking the Dragons story arc of the anime with many of the released cards and the characters unique to that arc, such as Alister, Dartz or Rafael
The show focused on the popular card game called Battle Spirits, which had become a global sensation and the dominant card game in the world of the show
(You can only gain this effect once per turn.) The Lady in Wight X DARK Level 3 [ ZombieEffect ] ATK 0 DEF 2200 Face-up Level 3 or lower Zombie monsters on the field, except "The Lady in Wight", cannot be destroyed by battle, also they are unaffected by Spell/Trap Cards and effects
The Prerelease period is also when WPN partner stores can begin selling all products from the set before non-member stores and other market channels