RUNE/ODDS

v0.2 · riftbound tcg

Hypergeometric probability for a 12-card rune deck. Tells you the odds of drawing what you need by the turn you need it.

4/12

How many runes of one color you're running.

First channels 2 on T1; second channels 3.

How channeling works

Your 12-card rune deck sits face-down at the start of the game. You don't see any runes until your first turn. Going first, you channel 2 on T1, then +2 each turn after. Going second, you channel 3 on T1, then +2 each turn. The table below shows cumulative probabilities by the end of each turn.

Note: these odds assume no recycling has occurred. Switch to once recycling has happened and you know your exact pile state.

By end of turn

TurnSeen1234
T12/1257.6%9.1%<0.1%<0.1%
T24/1285.9%40.6%6.7%0.2%
T36/1297.0%72.7%27.3%3.0%
T48/1299.8%93.3%59.4%14.1%
T510/12100%100%90.9%42.4%
T612/12100%100%100%100%

Cell shading scales with probability. Read across to see how odds climb each turn.