Juggernaut + Second Wind combo doesn't always work properly

[Professor Dongdungus]

I'm using Juggernaut and second wave to gain armour and do tons of damage but I find that at the start of combat, I'll gain armour but It'll only deal 7 damage once even if it exhausted more than 1 card and it'll do the same thing randomly during combat.

Anyone else have this issue?

[Zu]

That's how it works, period. You might be confused because you also had feel no pain in play eventually, which does count as separate instances of gaining block for juggernaut.