It will be put into your graveyard as it resolves
After the subgame ends, each player shuffles their cards from the subgame to re-form their main-game library (and Attraction deck, if applicable), and they return to the main game from the point they left off, with Tug of War finishing resolving and the winner of the subgame getting their reward
Ive seen every episode multiple times, and I reference it often
9 Amy Rose - $15.72 Secret Lair X Sonic: Friends And Foes Amy Rose has a neat ability, being able to attach up to one Equipment upon attack, boost another creature's attack for a turn, and attack with Haste
Although the set as a whole has been huge - it sold more in one day than The Lord of the Rings set sold in six months - I'd love to see a breakdown showing what percentage of those sales the FF7 deck is responsible for