If a character is stunned and he has a payment power that says use only in recovery phase, I can use that power after I recover him during the recovery phase

Im a little iffy on the whole recovery phase readying thing, like who have pority and what can you do there, please some one explain to me the whole recovery phase thing and payment power during recovery phase

Nope.

- At the start of the Recovery phase, all the powers that trigger on the start of the Recovery phase are placed on the chain.
- Next, each player in turn gets priority to place new effects on the chain or pass. As usual, when successive passes occur (both players passing with no new effects), the last effect on the chain resolves. If there are instead no effects on the chain, the game moves into recovery wrap up.

NOTE: The last time to play effects in the recovery phase just passed!

- In recovery wrap up, no player gets priority while the following actions are
taking place or between the actions taking place. Any powers or modifiers that trigger during the wrap-up will be added to the chain at the start of the
next turn’s draw phase.

The wrap-up steps are:
a) All players with 0 or less endurance lose the game. If this means no players are left, the ones with the highest endurance total do not lose, instead. ...yadda yadda yadda.
b) Each player can choose a stunned character they control. Those characters then simultaneously recover.
c) All stunned characters are KOd.
d) All objects are readied.
e) "This turn" duration ends.
f) Initiative passes clockwise.

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So.. you can't do anything in the middle of all that choosing a character to recover and KOing the rest. You get priority before, and then the next time you get priority it'll be the draw phase, so if you're initiative player, don't pass in the recovery phase cuz if your opponent passes as well, you won't get a chance to play anything that recovery phase.