Steps of Faith and Roullete

[Fynlar]

This goes for Praetorium and Castrum too. Though at least those two have cards...that are much quicker and easier to earn from a dude hanging out in Mor Dhona -_-

The Livia card, yes

But from the various testimonials I've read, people seem to have had a much easier time nabbing Gaius from Praetorium rather than the Indolent Imperial.

[kyuven]

The Livia card, yes

But from the various testimonials I've read, people seem to have had a much easier time nabbing Gaius from Praetorium rather than the Indolent Imperial.

Easier being relative. The dungeon takes a long time and you have only one "lot" to get the card. In the time it takes to beat one praetorium, you can beat the imperial more than 30 times.
Your only reward from praetorium at all is maybe the card and some tomestones. The imperial has 4 cards on his loot table, has no queue time, and doesn't risk being matched up with unpleasant people. Plus since his table has 4 cards, his rate of dropping cards is much higher so his MGP yield is greater.
Which is why the imperial has a huge fanclub of people around him most of the time, while queues for praetorium still aren't anything to write home about.