The Bigger They Are and Blasts?

[Erik1978]

If Hannah with The Bigger They Are upgrade melee attacks a minion, causes severe damage and a blast marker hits an enemy enforcer who has an upgrade, will that blast cause +1 damage because it's part of the melee attack or is the blast "just a blast side effect"?

[Bengt]

So the ability says:

"The Bigger They Are...: This model's Actions which deal damage deal +1 damage to non-Master models with one or more upgrades attached."

And given that wording I would calculate the damage separately for each model taking damage and add the +1 to the non-Masters with upgrades.