エボニーのバレンタインイベントでは Chocolate Card を組み合わせて Lucky Box を手に入れることができる。
Chocolate Card は Green, Blue, Purple, Orange, Red の5種類。3種類組み合わせてそれぞれ違う Lucky Box が手に入るので、全部で5C3で10種類ある。
組み合わせと入手できるアイテムは次の表の通り。アイテムはいずれか１つ以上が入っている
| LuckyBox | Cards | Items |
|---|---|---|
| LuckyBox Ⅰ | Green Blue Purple |
10 Stamina x12 200Gems x3 Green Material Chest x30 10min Speedup for Construction x15 Medium Resources Chest x15 |
| LuckyBox Ⅱ | Green Blue Orange |
60m Speedup x3 50k Gold x6 10min Speedup for Researching x30 Green Material Chest x30 Medium Resources Chest x15 |
| LuckyBox Ⅲ | Green Blue Red |
200Gems x3 1h Speedup for Construction x9 1h Attack Increase x3 Medium Resources Chest x30 50k Gold x15 |
| LuckyBox Ⅳ | Green Purple Orange |
Senior Resources Chest x9 1h Speedup for Researching x9 2k General EXP x15 50 Stamina x1 Intermediate Material Chest x15 |
| LuckyBox Ⅴ | Green Purple Red |
1k Monarch EXOP x15 100k Ore Box x6 Intermediate Material Chest x15 10m Speedup for Crafting x30 200 Gems x3 |
| LuckyBox Ⅵ | Blue Purple Red |
60m Speedup x3 100k Food Box x6 Troop March Speedup x6 10min Speedup for Healing x30 Meduim Resources Chest x15 |
| LuckyBox Ⅶ | Blue Purple Orange |
100k Gold x3 1h Speedup for Crafting x15 500k Food Box x3 2k Monarch EXP x15 200Gems x6 |
| LuckyBox Ⅷ | Green Orange Red |
Refining Stone x30 Blue Material Chest x15 Truce Agreement Informant x3 100k Food Box x9 1h Speedup for Healing x9 |
| LuckyBox Ⅸ | Blue Orange Red |
Adv City Teleporter x3 1h Speedup for Training x15 500k Stone Box x3 500k Food Box x3 5k General EXP x6 |
| LuckyBox Ⅹ | Purple Orange Red |
24h Truce Agreement x3 500k Ore Box x3 500k Lumber Box x3 60m Speedup x15 500k Lumber Box Material Bag (Silk Road) x3 |
