Combination of Arms? I Use Angels and Demons as Materials

[Tiandao Announcement: The Eternal Battlefield is open! Tens of billions of humans traveled across time to become lords! I, Su Chen, have awakened the SSS-level talent [Infinite Fusion]! Other people's farmers can only farm? My farmer + skeleton soldier = [undead farmer] (attack power x 4, and he can also farm!) Do others have trouble with troop restraint? My Angel + Demon = [Fallen Angel] (Double cultivation of light and darkness, ignoring restraint!) Others spend all their money to recruit legendary troops? My dragon + phoenix + titan = [Creation Dragon God] (Kill the Abyss Demon King in one move!) [Integration successful! Get a new class: Death Knight! [Integration successful! Obtain new troops: dragon and phoenix! [Perfect fusion trigger! Get the mythical troop: Creation Titan! Shock around the world: "Every unit in this guy's army is unique!" "He is not a lord, he is the God of Creation!" I, Su Chen, want to make the four words "Infinite Fusion" the ultimate law of this world!