looks like a lot of moving parts there.
Eubanks signed a 3 year deal less than 2 years ago so he wouldn't have been eligible for an extension yet. But, Toronto waived him so that contract doesn't matter.
Blazers have no Bird rights on him so they'd have to use part of their MLE if they signed him this year...unless they sign him to a minimum contract. But the max length on a minimum is 2 years. A longer deal would require that MLE. Now, he's a 4 year vet so his minimum, this year, is around 1.8M. A 4 year deal like Watford's, with raises, would probably be around 8M