EXPERIMENTONGOD

I would only do that if you already own all the legendary mercs and want to max out a specific one as soon as possible.

The value of getting a new task for a merc, even if the merc …

I have completed all tasks (there are 18 in total) for Xyrella, Samuro and Cariel.

It's a resounding YES the most efficient way to earn coins and craft missing mercs (even legendaries) is spamming tasks. I'd say it's even better …

The coins deal is terrible and let me explain why.

Imagine you own 3 legendaries: Gromash, Malfurion and Jaraxxus and you have 250 coins for Sylvannas, Diablo and Lich King. You buy this pack and you get 250 coins …

Initially I thought the same as you: get mercenaries in packs and save coins for upgrades.

Until you realize you barely get any coins for a merc until you own that merc.

And that legendary merc drop rates …