Conjure Dragon

You call forth a Dragon servant. Choose a Dragon from Chromatic, Metallic, Planar, Gen or Lung that fills a 10-foot cube within range. A Dragon of challenge rating 10 or lower appropriate to the area you chose appears in an unoccupied space within 10 feet of it. The elemental is friendly to you and your companions for the duration. Roll initiative for the Dragon, which has its own turns. It obeys any verbal commands that you issue to it (no action required by you). If you don't issue any commands to the Dragon, it defends itself from hostile creatures but otherwise takes no actions. If your concentration is broken, the Dragon doesn't disappear. Instead, you lose control of the Dragon, it becomes hostile toward you and your companions, and it might attack. An uncontrolled Dragon can't be dismissed by you, and it disappears within 1 hour after you summoned it.