The reward pyramid displays this:
Top 61-100%
Relic
Top 31-60%
Relic, Key, Fighter, Skill points
Top 11-30%
Relic, Blockbuster, Key, Fighter, Skill points
Top 1-10%
Relic, Blockbuster, 2 key, Fighter, Skill points
Rank 1-10
2 relic, Blockbuster, 3 key, Fighter, Skill points
I am curious...