Help with dungens. (im new to prisons lol)

[Freezebranded]

I just wanna know if the keys (mostly Odar) are a diff block or in a stone block. if so, how likely is it to get?

 

[Asheey]

Not sure if it’s just stone, but some friends of mine has said it takes up to 30k+ blocks mined to get a token sometimes. It’s just a random chance.