This expansion adds 114 cards to the original game, including 8 new wrestlers:
"Big Poppa Pump" Scott Steiner
Brian Knobbs
Hollywood Hogan
Norman Smiley
Ric Flair
Tank Abbott
Terry Funk
Vampiro
The focus of this set was allowing players to take the action outside the ring and perform special moves that could only be used on the arena floor.
Game description from the back of the Slap Pack booster box:
Get in the Ring! The high-flying action of the WCW Nitro trading card game spills out of the ring and into your hands with the Hardcore expansion set! Grab that folding chair and jump into the melee with the newest hardcore Wrestler cards. Create crushing decks with all-stars Funk and Vampiro or ring monsters like Tank Abbott and Big Poppa Pump. Collect them all and watch your opponent beg for mercy.