Blight Bond

You focus on an area of  living vegetation that you can see, within 10 feet of you. Sprinkling the area with the vial of blood, you summon forth nature blights to do your bidding and aid you in combat. The Blights last until slain, and obey your commands, depending on the number of them under your control at one time, you may need to make saving throws (INT) for them against your spell save DC to remain under your sway. At 3rd level, you can summon any of the below:

• 2d6 Twig Blights
• 1d6 Needle Blights
• 1d4 Vine Blights

Each Blight has the usual monster stat block, however they have an Intelligence of 10 instead. 

At higher Levels

For each level cast above 3rd level you can summon one additional Blight of the chosen type that you attempt to summon.