Toggle CC immunity to the dummies. I'm trying to practice Riven's Fast Q combo but every 3rd Q slightly moves the dummy until it's by a wall. Then I have to spawn a new one. Ruins my flow.
Implementing some scenarios:
One I have in mind would be a Malphite bot ulting you. You could spawn it and it would randomly ulti you in intervals between 3-8 seconds or something. It'd be a nice way to practice reaction times.
Clearing all buffs and debuffs. As Riven you have to wait until your ulti buff is gone before you can ult again. Quite annoying.
Keystone CD resetting. If you're testing out specific damage potentials then having to wait for TLD CD all the time could be tiring.