Not a single sensible Lycan Hay Day guide will dissuade you from receiving Helm of the Dominator and a maxed-out Necronomicon manual on the hero first. Both items are simply too great for the hero. However, we are not just here to talk about how to teach you how to apply this low-risk, high-reward enthusiast to acquire bars. It's fairly easy, after all : you construct the stated two things, secure the outside towers to your group and either call to get a five-man push, or you push high-ground, by yourself effectively ending the match while your entire team keeps the enemy group occupied. It is that simple. But with Lycan, it works more frequently than not since he can melt down towers fairly quickly on his own.
Having said that, instead of teaching you how to play the hero, we'll teach you how to play against it.
So, let's break it down: Lycan is a strength-core that generally prefers to avoid having to battle different cores late in the Hay Day Items for sale. He lacks any sort of aoe harm and his principal strength lies in pushing towers onto the backs of his summons, or by killing enemy heroes as fast as he can throughout the duration of his Black King Bar and/or supreme. Talking of ultimate, Shapeshift allows him to mow down constructions fast, quickly jump into engagements and runaway from conflicts whenever necessary.
