If the Ducks are looking for a skilled forward in their rebuild, I think they'd have better luck getting Amirov from the Leafs. Robertson factors into the lineup now, for a team looking to contend. Amirov is going to be excellent, but he's a couple years away.
Something like...
To Anaheim
Rodion Amirov
2nd round pick
4th round pick or equivalent player
Pierre Engvall (to make the money work)
To Toronto
Rickard Rackell (50% retained)
1st + 2nd + 4th + a cheap, young, roster player would likely be Rackell's value retained.