This is the most realistic deal I see the Warriors offering the Heat. Even though Butler is the franchise player in MIA, losing him won’t be as big of a loss on the court as one may think. The Heat are so used to losing him to injury at this point that simply having a competent two-way SF would mostly fill that void. Kuminga provides that + a ceiling. Wiggins and Santos might just thrive in the Heat system as versatile wings. As for Melton, he’s basically cap filler here given that he’s out for the season. Lastly, those picks fill out the Heat’s draft presence, assuring them a first round pick every year and also can be used later on for a possible trade.
I’m not saying this is the best deal out there but I think it’s an acceptable one.