The battle had been going on for two minutes.
To be precise, Da Fei's Angel Army was huddled behind the Ancient Tree Fortress taking hits for two minutes. After all, Da Fei is not exactly a Master-level dungeon player; when facing an unknown boss, the prudent move is to observe the boss's moves with a turtling tactic.
And the boss's moves are very simple and direct: every few seconds it launches a rain of swords and knives, then retrieves them and continues firing. The frequency is extremely fast and covers a wide area. Of course, seeing the two-digit damage numbers bouncing off the fortress indicates that the attack is certainly very high, and a typical 300 HP level 7 unit would definitely be KOed instantly.
