As a side note: does anyone else have this problem: I have all the Ansei frags collected but no deck, and conversely i have al the druid king cards NOT collected but the deck is UNLOCKED. I have a separate discussion in the Help topic.

Pelin can only activated if you have an agent in your discard pile and 2 power to spend on moving that agent to your draw pile. You can keep using the patron in future turns as long as those two conditions are met.

Hlaalu can be activated if you have an active agent or any card in your played pile that has a cist of 2 or more. You can keep using the oatron in future turns as long as that condition is met.

Crow can be activated if you have at least 1 gold to spend, but once you use it you can't use it again unless your opponent uses it and it no longer favors you.

Psijic can be activated if your opponent has an active agent and you have 4 gold to spend. You can use it again in future turns as long as those conditions are met.

Red Eagle can be activated if you have at least 2 power. You can use it again later.

Hunding can be activated if you have at least 2 power. Once it favors you, you'll get 1 gold free in that turn and at the start of your next turn unless your opponent activates it before then. You can't activate it again as long as it already favors you.

Orgnum can be activated as long as you have 3 gold to spend, or 2 gold if it currently favors your opponent. You can activate it again in future turns.

Rajhin can be activated as long as you have 3 gold to spend. It can be activated again later.

Druid can be activated as long as you have 2 power to spend. It can be activated again later.

If you buy a contract card that lets you call on an extra agent, you can call on the same agent again in the same turn except for Crow and Hunding once they favor you. There's also a Hlaalu card that lets you call on an extra patron if it combos with another Hlaalu card.

Sometimes you can win the match by calling on multiple patrons in your turn so all 4 favor you.

If one of the patrons you need to turn is Crow, make sure you don't spend all of your gold before calling on it, and don't call on it before calling on patrons that require gold (Psijic, Orgnum, and Rajhin).

Same with power; if you want to call on multiple patrons that require power, plan accordingly.

Sometimes you can call Crow to get more power, then use that to call on other patrons.

So careful planning as far as the order you call on the patrons can be critical.

Also, if you say you don't have any Druid King fragments collected, but the deck is "unlocked", I'm guessing what happened is your opponent chose it as one of their patron decks. Because even if you yourself do not have one of the extra decks unlocked to select for yourself (Hunding, Red Eagle, Orgnum, and Druid King are the unlockable extra sets), you can still play with the deck if your opponent pulls it into the game as one of their 2 chosen decks/patrons. Only for that game, though, until you have collected the full deck for yourself.