I just realized, you can just touch the ground after wiping it across the tatooo...
(Kuchiyose no Jutsu) - Summoning Technique
Rank: C
Type: Defense/Attack/Suplementary
Range: Short-Long
Chakra Cost: 15
Damage points: N/A
Hand Seals: Boar, Dog, Bird, Monkey, Ram, Palm On Ground
Description:To summon the creature the ninja will wipe blood on the hand, perform the necessary handseals and then touch their hand to the ground or another object. Though it appears that as long as significant pressure is placed against the blood in some form, the summon will be complete. There can be variations to the summoning steps, some ninja like Temari will wipe blood on her fan, then by swinging the fan the animal is summoned.
Other ninja like Orochimaru wipe the blood across a snake tattoo on their arm first, then touch the ground.
You summoned agiant snaked, called the Kyodalja..
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(Kuchiyose no Jutsu: Kyodalja) - Summoning Technique: Giant Snakes
Rank: B-Rank
Type: Supplementary
Range: Short
Chakra cost: 20
Damage points: N/A
Description:
The user will summon a generic Giant Snake whose size can vary from a 10 meter long snake to ones the size of a boss summon, rivaling 100 meters long. These snakes vary in appearance and size and serve only as basic warriors, having only the normal characteristics of snakes. Although they are quite simple snakes, they are very enduring and resistant and, when big enough (about 50 meters long) they can take up to B-Rank damage.
Note: requires snake contract.
Note: can only be summoned once
Good work, now try it once more...