I recently made a list of the most obvious, common events that might be used to trigger card powers. It goes something like this:

Static/Passive Events:
While destined…
While resourced…
While reserved…
While exhausted…
While exiled…
While fated… (see below)

Dynamic/Active Events:
When cycled…
When developed…
When divined…
When revealed…
When drawn (as lot)…
When staked…
When committed…
When forfeited…
When exhausted…
When sponsored…
When reserved…
When activated…
When consigned…
When recycled…
When banished…
When targeted…
When depleted…
When exiled…
When fated… (see below)

Part of my thinking about fate and prophesy earlier, was trying to figure out how to utilize the very first static event on the list, “while destined.” Think about it like this: how do you know to trigger the effect of a card while it’s face-down in your deck? Kind of a silly question, don’t you think? Cards can’t have powers while they’re still in the deck…

Or can they?

Fated (While destined, this card may be face-up. If your Destiny is shuffled, instantly cycle this card.)

With this card power, the player has the option of having the card appear face-up in their Destiny. There, they (and any other player) can “see it coming” from the time that it goes on the bottom of the Destiny to the time it reaches the top. Once this power has the opportunity to circulate, I can include such cards as:

Generic Prophesy [Ditto, Ditto]
When you consign this card, it gains the Fated power. If you divine this card while it’s fated, something awesome happens.

Agent of Prophesy [Persona, Et Cetera]
While you have fated Destiny, you may cycle +1 Destiny whenever you activate this card.

Means to an End [So On, So Forth]
Standard; exhaust this card and choose a fated Destiny. Its player must exile Destiny until the chosen Destiny is revealed.

There are all kinds of fun ways to interact with this card power.