Thorn Spears

You raise a hand and create a spear of vine and thorns floating above your hand, and with a forward motion of your arm, hurl it at a single target in range.

Make a ranged spell attack against that target. On a hit, the target takes 1d4 + your spellcasting ability modifier piercing damage, and must make the saving throw as described below if applicable. 

The Spear can also be used as a melee weapon, dealing 1d4 + your strength modifier piercing damage, and the target must make the saving throw as described below if applicable. 

All spears crumble to dust 1 minute after they are created

At higher levels, the number of spears you create increases. 2 spears at level 5, 3 at level 11, and 4 level 17. All of the spears, if hurled, must have the same target. Make a separate attack and damage roll for each spear.

If more than one spear hits the same target in a single turn, the target must make a CON saving throw (10 + your spellcasting ability modifier. This does not change if another player uses the spears). On a failure, the target is poisoned until the start of your next turn.