Talk:Halloween 2016 Event/@comment-139.193.33.152-20161027112907/@comment-10691202-20161027153454

You need to first clear all the main quests.

After which, challenge quests will appear on all stages

Cave, Tundra, Lava and Castle gate last challenge quests have 1 copy of Eli Brave as reward.

You need to clear the previous stages challenge quests to get subsequent challenges unlocked

TLDR; complete all main quests => complete all challenge quests to get all Eli Brave copies (though pyramid ones are optional)