So a normal cerb does 45,000 damage
times 3 per Jorm, and with 20 or so of them there
Thats a subtotal of 2,700,000 perhit of all 60 cerbs at once
Given that a core 5 pob has 32,000,000 standard health and since it was on full health starting at that with full regens (of all 6) it'd repair 60,000 damage per 20 seconds. Now given it was shielded, the cerbs would only do 1% of their original damage, that'd be only 450 damage per hit of a cerb, which time 60 is is 27,000 a second.
So putting that together,
32,000,000 health getting damaged at 27,000 a second, would take only 1,185.18 seconds, or properly, 19.75 minutes
There's your math
Small edit:
Even with it repairing 60k per 20 seconds, its still taken 27k PER second in return, it was HEAVILY out DPS'd faster then it could even repair, so even if its repairing 60k per 20 seconds, it still would of taken 540k damage by those 20 seconds, in which case it'd only repair 60k damage, meaning it took 480k damage which equals out to even more in the grand scheme of time
