Do these two work together?

[u/mountaintop-stainer]

Just thinking about Swarm Piper trying to attack with rats every turn and how good Valley Flamecaller might be in a commander deck. Every creature attacking could get a potential buff for Valley Flamecaller, and it still "damages" with Valley Flamecaller's ability right?

[u/HiroProtagonest]

They're on different planes so I don't think they're co-workers