Summoning A Hero Unit

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Ding!

[You and your allies have constructed {Living Wood Houses (E+)} x85!] 

[You have Completed the Civilization Task: {Build 100 Houses: 100/100}!]

[Congratulations! You received the following Rewards: [1.000 Dungeon Energy] [150 Civilization Renown] [Special Unit Summoning Ticket] x1!]

As Alice spoke, the Civilization Task was also completed. I received some rather normal rewards. Got back some of the Dungeon Energy I used, some renown getting me closer to the Civilization Rank Up, and also a special item. The item was weird not only because of what it could do, but because it had absolutely no rank whatsoever.

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[Special Unit Summoning Ticket]

A Special System-made item that only the Civilization System can create through the absorption of Causality and its synthesis into this powerful item.