This is Zoisite, a fusion of an Amethyst and two Peridots! They go by they/them, as their Amethyst counterpart goes by he/him, and the peridot counterparts go by she/her!
The Amethyst is sort of the buff of the group, while the first Peridot (or Army) is more of a strategist, and the second (or Handy) is the technician/engineer!
To claim them, give them a backstory, alignment, personality, and weapon!