Why would you have to had reset?
I used one once, but I didn't find it worth it.
Just exit the dungeon and start over. (you're going to be doing that a lot)
Or if you can't exit yet, just play till you can. If you continue to die, die till you can win then start pushing again....
 "The Evil Lair"){kind=icon}
 "Burrito Bison: Launcha Libre"){kind=icon}
 "Astral Raiders"){kind=icon}
 "Shoot & Sow"){kind=icon}
 "Firestone Idle RPG"){kind=icon}
 "Zero IDLE"){kind=icon}
 "Upgrade Complete 3"){kind=icon}
 "Cursed Islands"){kind=icon}
 "Outer Invasion"){kind=icon}
 "Realm Grinder"){kind=icon}