Taken from r/ Diablo Immortal reddit:
Most streamers have found out that the Wizard spells have interesting interactions with each other;
- Casting Scorch (fireball), and then following it up with a cone of wind, creates a firestorm effect, spreading and probably increasing the damage over time.
- Casting beam spells on your Ice Crystal refracts the beam, hitting enemies in different directions.
Update: Just saw in another let’s play – using the Barb’s Sprint skill before Whirlwind sort of cancels the slow movement that comes with the latter. Not sure if it also works like this in D3.
For the wizard there was an other combo with the black hole + thunder creating a thunder storm I think.
Wizard combo#1
Wizard combo#2