Answer:
sinister lord I'm pretty sure is 35-36k and mythic I'm not sure but i think the shiny value is like 35-34k and dropping and sin is rising, I don't know mythic value but u can check in a value list but sinister lord is rising so yea but if your doing mythic for sin lord L because mythic is worth way more than the shiny gem because its more rare.
Explanation: