MCU: 15 Most Powerful Items In Marvel's Phase 3
13. The Yaka Arrow
There's a good argument for Yondu's Yaka Arrow being the most surprising and coolest of all of the weapons in the MCU: it is understated, tiny and seemingly non-threatening, and yet it's capable of mass murder with the greatest of ease.
The Arrow's immense power was showcased during the Battle of Xandar in Guardians Of The Galaxy, when Yondu faced and took down around 20 Sakaaran foot soldiers in a matter of moments.
The intriguing thing about the Yaka is that it can be manipulated using simple whistling giving it the highest effort to effect ratio in the MCU.