With cons with me, I don't want obvious ones, your one is obvious. I want you to think, think about the jutsu itself and be creative and outside the box.
But moving on none the less;
(Suiton: Mizuame Nababara) - Water Style: Starch Syrup Capture Field
Rank: C
Range: Short/Long
Chakra Cost: 15
Damage Points: N/A
Description: The user After performing the required hand seals Ram → Tiger spits out high-viscosity, chakra infused water, aimed at a surface of wide scope. This is a stream of sticky liquid which can be used to form an adhesive trap that can inhibit a person's mobility. One can effectively reduce their enemy's area of activity with this technique, and has the effect of being able to take complete control over the battlefield. The normal scope of this technique is normally just a few metres, but if prepared, it is also possible to make an entire pond of starch syrup. Being caught in the technique can be avoided by channelling chakra to one's feet allowing one to walk upon it uninhibited, beforehand.
Perform the seals, gather your suiton chakra in your mouth, then release a sticky liquid at my feet to trap me in.