No Idea what Dubas would do with that cap space tbh, but we need D and a 3C.
Edmundson from the Habs would be a nice add. Could try to get him with 50% retention and at $1.75M for two seasons, that is unreal value for what he brings to the table. He basically replaces Muzzin at a fraction of the cap hit which leaves room to get your 3C. Eddy can play both sides very well too so that provides flexibility for the coach. Eddy plays a very physical game and does the little things well which is what the Leafs need IMO.
Then I wonder if you are going after a 3C rental or someone you want with 2/3 years of term? Like the difference between getting Dvorak or ROR/Horvat who are rentals. Of course ROR and Horvat are better than Dvorak but it's a one year fix for this season.
* Getting Eddy at 50% cost futures.
* Getting ROR or Horvat cost futures but you could try to get them at 50% retention as well. Getting Dvorak with more term cost futures but possibly not as much as the other two rentals.
The issue here for Dubais is does he want to trade futures and go all in for this season. If he wants to get someone with term, cheap AAV, someone you really value, and not pay too much futures... good luck.