Treasure Chest Opened After Watching Ad

I watched an ad and opened it. From the Old Treasure Chest in the Elf Forest, I got a 3000 EXP Potion. It's a 40.3% miss. What a shame. Old Treasure Chest in the Elf Forest Item Chances 500 Coins 0.1% 3,000 Gems 1.5% 5 Gem Boosters: 1 hour 1.6% 5 Gem Boosters: 30 min 2.5% 1,000 Gems 3% 500 Gems 5% 10,000 EXP Up 18% 5,000 EXP Up 28% 3,000 EXP Up 40.3%