Bewildering Odds

Fate usually picks sides, but fate constantly changes its perspective on you. You gain the following abilities:

• You gain a +2 to a random stat, but a -1 in another random stat. You can calculate this by rolling a d6 to choose stats, e.g. 1 = STR, 2 = DEX, ... 6 = CHA. Alternatively, at the DM's discretion, you may pick the stats yourself.
• You can channel unpredictable luck into your combat and exploration. Once per turn you can add a bonus to an attack roll, ability check, or saving throw. This bonus is equal to d12 - d10. This bonus can be negative. You can choose whether or not to apply this bonus. You can use this feature once per long rest, even if you decide not to use the result.
• You gain a 20 ft magical aura centered around yourself that activates once you roll initiative. This aura can have 2 different effects that can and will change constantly. At the beginning of your turn, roll a dice of any value. If the result is even, everyone within the aura, including you, gains the benefit of the Bless spell. If the result is odd, everyone gains the detriment of the Bane spell.