Slime Monster
1600 words within 8 posts.
Every time you attack the slime monster, roll one 10-sided die.
Once you have accumulated a sum of 50 from your rolls, then you kill the slime on your last attack.
Fairy Tail: Sins of Edolas
Nearly 300 years after Fairy Tail's comeback in the Wizarding Games, Earthland calls for new heroes

