I think this feature will add a lot to the game.
These are the commands
Enemy (ID) health
Enemy (ID) max health
Enemy (ID) weakness
Enemy (ID) power
Enemy (ID) speed
Enemy (ID) animation speed
tu
Enemy (ID) can harm character
Enemy (ID) harmed
etc.
This only will keep in-game, this not modifies completely and permanently anything.
Also with blocks
Block (ID) times
Block (ID) duration
Block (ID) disable
Block (ID) destroy
Block (ID) destroy weakness
Block (ID) trigger
Block (ID) trigger weakness
And with more stuff!