The Doctor:
Passive: Regenerate. The Doctor regenerates into a new body upon death. Cancels and causes the doctor to die if takes more than 10% of his health in damage.
Q: Sonic Screwdriver
Stuns down any robots nearby. Works on towers.
W: Time Travel
Travels back in time to one shot the opponents at level 1 in their spawn
E: Threaten
Tells nearby champions to surrender or he will kill them. 50% chance of instant surrender by the opponents, 50% chance of the doctor getting mad and killing everything. Either way, it's an inst-win ability.
R: Find Companion:
Finds someone to help him. Can have 2 at once. Their primary ability is running and screaming.
Merlin from Merlin:
Passive: Hide Magic. Appears to be really bad with 0 AP, but actually has 500+
Q: Pushback
Casts a spell that damages and pushes back target champion
W: Call Dragon
Calls a dragon to burn the targeted area
E: Transform
Turns into an old wizard and insults all nearby allied champions. 10% chance of killing any Jarvan IVs nearby.
R: Blundering Clotpole
Prince Arthur randomly walks onto the battlefield, forcing enemys to attack him. Takes all the credit after Merlin aces them with his dragon.