40k Psychic Phase - Casting statistics
These tables give percentage chances for achieving certain events relating to casting Psychic powers in 40k 7th Edition. (Actually truncated or rounded down values).
They are computed by a program which iterates over every possible combination of dice rolls for the given number of dice, and counts the results.
Key
- dice
- Number of dice being rolled.
- wc1, wc2, wc3
- Psychic power Warp Charge cost of 1, 2 or 3 – percentage chance of getting at least that many successes.
- perils
- Percentage chance of getting at least two ’6’s and causing Perils of the Warp
- perils_double
- Percentage chance of getting any ‘double’ and causing Perils of the Warp with Daemonology
- deny1, deny2, deny3
- Percentage chance of getting 1, 2 or 3 ’6’s to deny a power with that many successes
Basic table
Casting with the normal 4+ rolls required for success.
dice | wc1 | wc2 | wc3 | perils | perils_double | deny1 | deny2 | deny3 |
---|---|---|---|---|---|---|---|---|
1 | 50 | 0 | 0 | 0 | 0 | 16 | 0 | 0 |
2 | 75 | 25 | 0 | 2 | 13 | 30 | 2 | 0 |
3 | 87 | 50 | 12 | 7 | 39 | 42 | 7 | 0 |
4 | 93 | 68 | 31 | 13 | 66 | 51 | 13 | 1 |
5 | 96 | 81 | 50 | 19 | 86 | 59 | 19 | 3 |
6 | 98 | 89 | 65 | 26 | 96 | 66 | 26 | 6 |
7 | 99 | 93 | 77 | 33 | 99 | 72 | 33 | 9 |
Casting with reroll e.g. Spell Familiar
Note that this also increases the chance of Perils but I haven’t computed values for that.
dice | wc1 | wc2 | wc3 |
---|---|---|---|
1 | 75 | 0 | 0 |
2 | 93 | 43 | 0 |
3 | 98 | 75 | 23 |
4 | 99 | 90 | 52 |
5 | 99 | 96 | 75 |
6 | 99 | 98 | 88 |
7 | 99 | 99 | 94 |
Casting with 3+ e.g. Librarius Conclave
dice | wc1 | wc2 | wc3 |
---|---|---|---|
1 | 66 | 0 | 0 |
2 | 88 | 44 | 0 |
3 | 96 | 74 | 29 |
4 | 98 | 88 | 59 |
5 | 99 | 95 | 79 |
6 | 99 | 98 | 89 |
7 | 99 | 99 | 95 |
Casting with 2+ e.g. Librarius Conclave
dice | wc1 | wc2 | wc3 |
---|---|---|---|
1 | 83 | 0 | 0 |
2 | 97 | 69 | 0 |
3 | 99 | 92 | 57 |
4 | 99 | 98 | 86 |
5 | 99 | 99 | 96 |
6 | 99 | 99 | 99 |
7 | 99 | 99 | 99 |
You want to see percentages for Tigurius in a Librarius Conclave? Sorry, haven’t got to that yet.