Sacrifice 100 Life Value to raise a Reconnaissance Eagle? Da Fei felt a strong sense of being set up rushing at him!
For a main hero, what attribute is the most important? It wasn't attack-defense, magic, or Command Power, but life! Even if a commander had a mighty army, with godlike attack and defense, once the commander was beheaded, the vast legion would crumble instantly! The hero is the most core, yet weakest link in the army.
Compared to other attributes, the channels to acquire life are really limited and difficult, basically through equipment, upgrades, and achievements. Upgrades provide only a paltry 2 points, Life-adding equipment doesn't necessarily boost other Strategic Attributes, and as for achievements, most players fall halfway. Of course, there's also that Life Book which has been hyped up to sky-high prices, but let's not even think about that.