Game of Gods, Starting with Awakening and Fusion Talents

Ten years ago, dungeon portals called 'Game of Gods' appeared in various places. Sikong Xuan, whose parents both died, joined the underground city mining team in order to raise medical expenses for his seriously ill sister. I thought it was just the lowest level F-level dungeon. Unexpectedly, it suddenly transformed into a high-end dungeon. Just when the raiding group was wiped out and only Sikong Xuan was left in the dungeon, a reminder in the system interface shocked him. "Ding! Congratulations, you have awakened your SSS-level talent and fused it!" "Ding! You got a reward, congratulations, you got a skill and a clone!" "Ding, the clone skills are fused, the talents are strengthened, and the fused monsters can be summoned!" "Ding! Fusion of the Dark Dragon, congratulations, you have gained magic immunity! You can summon the Dark Dragon!!" "Ding! Fusion of the king of super ancient civilization, congratulations, you have obtained the ruler talent! You can summon the king of super ancient civilization!!" … This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.