[BigDaddy]

That probably pays for itself the next 2 turns. 50% * 5 = 2.5/turn

The first turn pays for most of the SDR, and the next one pays more than it off, unless, as occasionally happens, they don't find any, in which cast it takes 3 turns. The probability of it taking 3 turns, for any specific priest is ~ (1 - ((.9)^3))

If he used a forging assist, it would likely be paid back the first turn. ~10% of the time it would not.

If you roll the numbers into an aggregate you'd endup with a ror of just over 2 turns without a hammer, and just over 1 with one.

The RoR is much longer with a B2 or B3 forger and lower if you use Forge of the Ancients and a forging item on a non-blood mage to make the item.