Iron Man 46-Who will be his feeder?

The rockett

Since there was a bit of debate on the Jubilee feeding Phoenix, it got me thinking for what people think will be the feeders for the 5* that we do not have feeders for yet. 

I will do a poll for all of the 5* to see what everybody is thinking, so here is the poll for Iron Man 46.

Team Affiliations:

Heroes, Avengers, Team Iron Man

Variants:

4* Hulk Buster

3* Iron Man 40-Feeds Hulk Buster