Check out the following Event Guide to know what you can get:
How to get EXP Card:
*Open Chest in Abyss for certain times.
*Get certain amount of Arena Point.
*Clear Elite Dungeon for certain times.
*Get certain amount of Guild contribution.
*Challenge certain times in Hero Trial.
How to get Raid Card:
*Socket Certain amount of Runes.
*Add certain amount of friends.
*Fullfill the taskes in the event: All-Rounder.
*You can check the events for more details.
Event Time: D1 00:00:01 - D7 23:59:59
Description: Spend certain Topaz certain to get the rewards.
MightyHero Shard Pack*1
Amazing Hero Shard Pack*1
Healer Shard Pack*1
Support Shard Pack*1
Event Time: D8 00:00:01 - D14 23:59:59
Description: During the Event, players can reach certain level of VIP to get chance to claim rewards here.
Thor's Hammer*1,Fairy Mirror*1
Divine Shield*1,Wyrm Heart*1
Mythic Hero Pack II*1,Giant Eternal Chest*2
VIP1+ and Spend 600 Diamonds
Ritual Token*5,Stamina*300,EXP Card*5
VIP4+ and Spend 800 Diamonds
Palace Energy Card*10,Raid Card*50,Enchantment Stone*100,EXP Card*5