Increases the max level of Summon Wolves by 2 but decreases the max level of Howl and Feral Impulse by 1

Wolves summoned with Aghanim's Shard are improved when leveling Summon Wolves past level
4
Damage and Health scale linearly for their fifth and sixth levels

Starting at level
5, wolves gain Hamstring, an attack modifier that applies a
0.5s root and the next
4 attacks from units under Lycan's control deal an additional
50 physical damage. Cooldown:
8s
Starting at level
6, wolves gain Hightail. When activated, wolves get a burst of energy, gaining hasted and phased movement,
100% evasion, and
20 attack speed for
8s. Cooldown:
50s