Greninja (5e Creature)
From D&D Wiki
medium humanoid (lizardfolk), any alignment
Saving Throws Dexterity +7
Water Shuriken. Ranged Weapon Attack: +6 to hit, reach 40/80 ft., one target. Hit: 9 (2d8) slashing damage.
Double Team. The greninja moves so fast that it looks like there are more than one of it. The greninja moves up to half its speed, creating illusionary duplicates of itself. Any creatures that attempt to attack the greninja has disadvantage against the greninja until the start of the greninja's next turn, when the effect ends.
Greninja are the ninja's of the creature world, striking from the shadows, falling out of trees or off roofs to get the upper hand, and throwing ninja stars made from water. Greninja can compress water into sharp-edged throwing stars. These throwing stars are typically thrown from unseen greninja, never from greninja that you can easily see. Many people who venture into a greninja's home will never see the attack coming... and they'll never be seen again.