Treasure Chest Opened After Watching an Ad

I opened it after watching an ad. From the Noble Treasure Chest of the Windy Hills, I got a 5000 EXP Potion. After getting 5 Gem Boosters for about 4 days straight, it seems like I'll be getting EXP for a while. Noble Treasure Chest of the Windy Hills Item Probability 1000 Coins 0.1% 5,000 Gems 1.5% 3,000 Gems 2% 5 Gem Booster: 1 hour 2.4% 5 Gem Booster: 30 min 3% 1,000 Gems 4% Gem Plus - 30 min 6% 500 Gems 8% 10,000 EXP Up 20% 5,000 EXP Up 23% 3,000 EXP Up 30%