Dungeon in danger (PT-BR)

A prisoner is used in a chalice, who he is or what he did is unknown, we only know that he woke up in a cave/dungeon with almost no memories and in a few moments he discovers that he is in a "battle royale" of dungeons, his first creature is a sort of small lizard man (Kobold) who doesn't seem to be very smart.

it's my first story so i'm still trying to pick up the pace critics are always very welcome but try to be polite, or you don't know, sorry for any possible grammatical errors i'm still proofreading, english is not my native language, i'll be posting in portuguese until i get there make time to translate and post again, but if you understand spanish you can probably read it thanks and wait for a while

Aos Brasileiros e portugueses que eu sei que usam esse site, se alguem puder me ajudar como revisor seria de grande ajuda