Upon first glance, the Sylvi Protege appears to be a horrible choice for her Time lock length. But with her ability to Burrow past any melee enemies without buddies behind them, and her Triple Strike allowing her to kill enemies far above her level, she becomes quite a powerful creature. When combined with an Encourage, she can become a devastating damage dealer. A caution though, her Triple Strike will trigger a unit's Rage ability three times, which can be awful to deal with.
*NOTE: Fields that contain the text *See above means the effect remains the same until said otherwise.