The following text has been added under
"Details" for Shadow Clone in the jutsu doc, regarding Shadow Clone training:
Let's do some math, shall we?
For Hazou, who uses 18 training blocks and 6 clones, he needs 150+150 = 300 chakra base to work with (he has enough, barely, for this to work out with Noburi's help, as he can overcharge by 5% with no problems). In addiiton to that, he needs 300+18*80, or 1,740 chakra.
Kei uses 17 training blocks, but 7 clones (1 of which is the Designated Snowflake, and therefore does not do training blocks). Split between two casts, that's 150 chakra and 300 chakra, for a base cost of 450 CP, add in 17*80, for a total of 1,810 chakra.
Between the two, a total of 3,550 chakra. With a Koi Pond that provides us 1600 a day, that means we need to get 1,850 chakra from Leaf Genin, in addiition to that which Mari requires.
Leaf genin, I will assume, have an average of CR 15, or 150 chakra. If there are ~1200 genin, that's 180,000 chakra, putting us at using ~2% of the genin available. However, some additional portion of genin are likely crippled or otherwise not on active duty. I do not
believe these genin are included in demographics, so they are beyond this analysis to prove; presumably, we go after these genin to drain first, so as not to harm Konoha's readiness otherwise.
We need, on average, 13 genins' worth of chakra per day (for Hazou and Kei, again ignoring Mari, who will likely add a substantial sum to the total).