Add a selection of creatures, worlds and devices from Big Finish

Mobs:

Viyran:

A creature that hunts down disease, and sterilises it, they are also known for creating various bioweapons. They would spawn in the wilderness on every world, with a virus cluster spawning nearby, and them killing any mob that becomes infected. They would be neutral, attacking you either when provoked or if you are infected. Chance to drop a single use cure for whatever virus you're infected with. They would have 40 health and do 7 damage.

Virus Cluster:

An area that has a chance to infect any biological lifeforms with a virus, these viruses can range from something as simple as a cold to the Terror Firma dalek virus, which mutates the mobs into dalek mutants.

Vortisaur:

A pterodactyl like creature that lives within the vortex. They would be ride-able by time lords, and would allow you to travel to other time zones riding on their back, however as it's capsule-less time travel, you would take damage while riding them through the vortex. If they stay outside the vortex for long periods, they'd start taking damage, so like pigs, although you can ride them, they would be incapable of being tamed. They'd spawn near a crashed Tardis, as they're attracted to the chronal leakage of a damaged time ship. They would be neutral, with them attacking you when provoked.

Neverpeople:

Creatures from the universe of anti-time, they were once beings from our universe, but were removed from the Web of Time by the time lords. They are semi-transparent humanoids that feed on temporal energy. They'd spawn near severely damaged tardises that are leaking temporal energy, their presence would decrease the amount of temporal radiation in the vicinity. They would be hostile to all mobs, and have 40 health, and do 8 damage.

The Eminence:

The Eminence was a yellow gaseous entity that traveled the universe in teleportation caskets. The Eminence would spawn in it's gaseous form from a teleportation casket, which would spawn on every DM planet. The gaseous state would have the ability to convert mobs into Infinite Warriors, which, unlike the gaseous state, would be killable. Like Zombies or Cybermen, they would have the ability to convert other mobs they attack into more Infinite warriors and kill anything they can't convert. They would have 40 health and deal 6 damage.

Dalek Time Controller:

The Dalek Time Controller was a dalek who's mind had been artificially evolved to make it better at perceiving changes in time. The Dalek Time Controller would spawn on skaro. It would be a boss, capable of generating a forcefield around itself, making it immune to damage for brief periods, buffing the daleks near itself, and Enderman style teleportation. It would be hostile towards all non-dalek mobs. It would have 300 health and deal the same damage as a normal dalek. Drops chroniton infused Dalekanium, used to convert your tardis into a Battle Tardis

Dalek in the centre

Rebel Time Lord Troop:

Rebel Time Lords working for Padrac. They'd spawn on every world and be hostile to all mobs, other than their hostility, they'd have the same stats as a normal Time Lord Chancellery Guard.

Technology:

Dark Eyes Sonic:

Sonic casing used by the Eighth Doctor Post Dark Eyes

Psychic Wimple:

A device that allows the wearer to impersonate another individual. When used, it would allow you to select a mob, or player (for players add a filter for certain people, with an API for server owners, so that they can't impersonate staff members), replacing the current skinpack system.

Battle Tardis:

A tardis armed with temporal torpedoes, created by installing Chroniton Infused Dalekanium into your tardis' Eye of Harmony. It would have stronger shields and a greater Hull strength than the standard version, but would have a slower maximum speed. Unlike the standard variant, it would have time torpedoes, which would be capable of being fired at other tardises when in non temporal flight.

Worlds:

Srangor:

A world occupied by daleks, with a unique type a radiation that makes regeneration impossible when on Srangor. The world would possess several unique ores to make it worth going there, like the materials used to craft high tier tardis components.

Mechanics:

Time Ram:

The ability to damage a tardis by materialising your tardis where the other tardis is currently landed. A side effect of time ramming is the vessel in question being flung into the vortex. Your vessel will also suffer damage from the Ram, and has a chance of also being flung into the vortex at a greater speed than the vessel you attacked.

Time Torpedo:

Weapons fired from a Battle Tardis. Allow you to engage other tardises in combat, they deal damage to the tardis being attacked which can be dodged by the pilot taking evasive action. They prevent the tardis being attacked from firing, or moving for 10 seconds after impact. If the torpedo misses the tardis and hits the ground, it has an explosive radius of 30 blocks, with the blast being powerful enough the destroy obsidian.