These are gonna be various flavours of passive/active abilities and different interpretations of the aspect themes in question because I have a lot of thoughts about aspect-related powers.
**DOOM**
- Knowing exactly when and how someone is destined to die.
- Forcing things to "end," whether it's cutting off the time limit on someone else's power or closing off someone's WiFi connection at an inopportune moment.
- If a Life player can bring a dead person back to life, who's to say a Doom player can't just instantly kill someone? Likely with certain restrictions (making contact, etc.)
- Pre-determining whether a god tier player will be able to come back to life.
- Summoning undead armies or ghosts and stuff.
- Rotting/decaying.
- The ability to know if something is going to generally be a bad idea. I want this power so badly.
- Cursing people to unfortunate fates.
**RAGE**
- You can never be fooled by illusions.
- Hysterical strength.
- You know that scene where Roger Rabbit frees himself from the handcuffs but could only do it "because it was funny"? That, but you can break the laws of physics if it makes someone irrationally angry (this is my personal headcanon for why Gamzee Can't Fucking Die).
- Forcing normally-predictable outcomes to veer off-path.
- I really like the idea of sound-based powers for Rage players. I wish I thought of that myself.
- Getting strength *through* anger, like The Hulk.
- Forcing others into a blind rage.
- Forbidding people from lying.
- Absorbing pain and dishing it back twice as strong.
- Forcing people to not believe something/someone, like Cassandra. I think it was Cassandra.
**BLOOD**
- Passive buffs to your allies. The more allies you have, the stronger the buffs.
- The ability to enforce promises on a cosmic level. Literal blood pacts.
- The Red Miles are like, SO Blood-coded to me. They're literally big veins.
- Bloodbending. Hardening your blood to use as shields. Spiky blood.
- Instant healing of wounds.
- Buff to charisma skill checks.
- You know how Light players can see the most fortuitous circumstances? Blood players can know *exactly* how *people* will react to things.
- In addition to the above, knowing exactly where someone would happen to be based on what you know about their personality. Basically using quantum computing to just like 4D Chess Predict what someone's up to.
- Linking someone's health to another person's. If one person's hurt, the other person feels it too.
- Supercharging your HP stat by just giving yourself A Lot Of Blood.
- i cast explode your blood