Is it necessary for tower defense elf warlocks to raise 9 kwai in battle?

Yes In the tower defense elf game, the warlock can enhance the warlock's attack power, increase his skill effect and improve the combat efficiency. At the same time, 9 Kwai can also provide additional gold coins and experience values to help players upgrade and enhance their heroic attributes faster. Therefore, in order to achieve better results in warlock battles, it is necessary for players to upgrade 9 kwai.