Hey guys! I have made a new One Command Creation! When you hit an entity with any kind of sword, you get an "adrenaline rush". You get effected with Strength, Jump Boost, Resistance, and Speed for 10 seconds. The effects don't come back unless you hit another entity (or the same entity) again.
This command took about 9 hours to make, and I used no command combiners. (Made by hand)