“The Code, Nemo’s Plans”
If a UT applies to, modifies, or is triggered by a specific action or situation (other than exploring the wild island) it may be used once, each time that action or situation occurs.
Does this mean that if Cross of Coronado (or a similar treasure) were on the same ship as the Plans, you could use the Cross every time the ship would loose a mast, or just the first time?
Ability of CoC for reference:
You may load this treasure face down. If one of this ship’s masts would be eliminated, you may reveal Cross of Coronado and remove it from the game instead.
Using the same line from the Plans, how many times could you trigger Runes of Thor/Loki per turn? Once per every turn, once per your turn?