Is Dror'niq's ability cumulative?

I had a question about whether Dror'niq's ability can be used multiple times in a burst? Couldn't you just burn off 6-7 mugic counters and destroy the opposing creature as soon as they attack or does it have to be done 1 mugic counter and 10 damage at a time?

It sure is. Both of his abilities are cumulative. So he's basically one punch man if you fight with him. Or if you want your opposing creature to recklessness 10 essential, that stacks too. (although recklessness 20 for 8mc is probably not worth it).

Thanks for the reply. Yeah from what I understood, Dror'niq is a beast .