Well done on obtaining the Precious Keepsake of a Cesares [Elite Rebel]!
Found by defeating Beasts in the [Champion's Way] event.

Can contain the following:

• 20% for 100 gems
• 50% for 10–30 gems
• 15% for 1 Governor Stamina
• 100% for 5–10m General Speedup
• 100% for 1,000 Hero XP