(Ame Kasui no jutsu) - Rain Spike Technique
I start by gathering chakra within myself and turn it to rain chakra. I then release it and send it to several raindrops that would fall around your clone. As the raindrops reaches the wet surface, which is filled with water because of the rain, they turn into several spikes of water. These spikes are made to rise up so that they would pierce through the clone, causing the clone to poof away.
Somewhat similar to the C-Rank earth spike jutsu. However because we begin to infuse the raindrops before they reach the ground I guess we could begin to follow up with another technique once the raindrops are induced with chakra. Since, from my understanding, they're kinda "programmed" to turn into spikes once they reach the ground. Correct me if I'm wrong x__x
(Ame no Yari) - Rain Spear
After gathering rain chakra within myself, I then send it high in the sky and on certain raindrops above the location of your snake summons. I control these raindrops to gather together in order to form a normal-sized spear of compressed rain water. This would be made to remain stationary on its place. Now I perform the same handseal you've shown me just recently, which causes the spear to fall down from the sky and on one of the snakes there, piercing through it, causing the snake summon to disappear.
What's unique about this technique is that you can decide whether to use the spear immediately or wait of up to 3 turns before it return to normal raindrops. However, even if used in the following turn, it would probably take the timeframe of one technique, which might not help much. So I would probably prefer to use it in the same turn in which I've made it, unless I wanna play mind games with my opponent and see if they meta-game out of it or maybe allow my bio to be aware of whether they have some form of sensory by spotting the spear without the normal capabilities of their 5 senses.