Ensnaring Strike

As a bonus action, vines appear at the point of
impact of a weapon attack. The target must
succeed on a Strength saving throw or be
restrained by the vines. A larger creature
has advantage on saving throw. If the target
succeeds, the vines disappear.While restrained,
the target takes 1d6 piercing damage at the start
of each of its turns. He or anyone can touh him,
can make a Strength check against your spell
save DC. For every spell slot level above 1st,
the damage increase by 1d6.