Most powerful cigar you ever smoked?

[the nub]

Most powerful was a fresh PSD4 (old blend) on an empty stomach with low blood sugar. Other than that, nothing that I couldn't exhale through the nose or suffered illness from. There was a time when I smoked the strongest cigars I could find. Turns out the reason was because everything up until that point lacked flavor, therefore I needed something to satisfy my senses. Now that I've found cigars with flavor, I don't care about strength. On occasion I will smoke big sticks before breakfast but nothing affects me.