Weighted
Weighted refers to the way spells/items/abilities select targets. Any spell/item/ability (with the notable exception of one unique that avoids targeting the top stack) that is described as targeting a random stack(s) will prefer to target the largest stack(s) by NP instead (usually but not always the top stack(s)).
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See also:
http://wiki.the-reincarnation.org/index.php/Random_stack
The game code chooses a stack by giving the top stack a 50% chance of being selected, and then halving the chances after that until you are out of stacks.
Stack # | Chance of selection |
---|---|
1 (aka top) | 50% |
2 | 25% |
3 | 12.5% |
4 | 6.25% |
5 | 3.12% |
6 | 1.56% |
7 | 0.78% |
8 | 0.39% |
9 | 0.19% |
10 | 0.01% |