Homebrew Saiyan Species Details
The Saiyans are a fighting race of warriors who, since ancient times, have lived a violent and inhumane lifestyle, where they attack numerous planets to build up wealth and goods. Dragon Ball GT: Perfect File speculates that Saiyans were originally Great Apes who gained intelligence and took on a humanoid form. As noted by Whis, "ancient Saiyans" possess different ki from the ones in the present time.
Saiyan Traits
Saiyan TraitsSaiyan Tail
Objects may be carried and manipulated with it, including fine manipulations. You may also use your tail as an attack dealing 1d4 bludgeoning damage as a bonus action (the tail is affected by martial arts). You cannot hold a weapon or shield using your tail. Due to the increased balance your tail grants you, you are proficient in the Acrobatics skill. If your tail is severed, you are no longer considered proficient in Acrobatics unless your class deems otherwise. If your tail is cut off or removed in any other way tail, you can grow one if you want to in 1d4 days.
Oozaru
You may access the Oozaru transformation so long as you have your tail, you activate this transformation by looking at a full moon your size category is now huge, and you must roll a dc 20 wisdom save or be controlled by the DM. You fall out of this transformation by having your tail cut off, loosing the moons light/rays on your body, having the moon destroyed (This might be asked) Stats for Oozaru places
Resilience
Resistant to bludgeoning damage due to your dense musculature.
Martial Strikes
You hit harder with your unarmed attacks than most from your Strength. Your unarmed strikes deal an additional 1d4 damage at level 1, 1d6 at level 5, 1d8 at level 10, 1d10 at level 15, 1d12 at level 20.
Saiyan's Endurance
When you are reduced to 0 hit points but not killed outright, on your next turn, make a DC 10 Constitution save. On success heal to 1 hp on your next turn. On a failure roll death saves as normal. You can’t use this feature again until you finish a short rest.