Rather than trying to come up with wise words as to how to pray, it seems the best thing to do is to pray from the Scriptures themselves for our leaders. Here are some passages and themes to guide you.

PRAYING THE SCRIPTURES for our orthodox leaders:
(All Scripture below is from NIV)

WISDOM? THE MIND OF CHRIST! Supernatural infilling of the Holy Spirit; ability to discern truth from lies; to be able to see Christ's path clearly in the midst of much discussion, noise, and the fog of war . Proverbs 2 says it best:

Prov 2:1-15

My son, if you accept my words and store up my commands within you, turning your ear to wisdom and applying your heart to understanding, and if you call out for insight and cry aloud for understanding, and if you look for it as for silver and search for it as for hidden treasure, then you will understand the fear of the LORD and find the knowledge of God. For the LORD gives wisdom, and from his mouth come knowledge and understanding. He holds victory in store for the upright, he is a shield to those whose walk is blameless, for he guards the course of the just and protects the way of his faithful ones.

Then you will understand what is right and just and fair- every good path. For wisdom will enter your heart, and knowledge will be pleasant to your soul. Discretion will protect you, and understanding will guard you. Wisdom will save you from the ways of wicked men, from men whose words are perverse, who leave the straight paths to walk in dark ways, who delight in doing wrong and rejoice in the perverseness of evil, whose paths are crooked and who are devious in their ways.

and Ephesians 1 provides a wonderful prayer we can echo:

Eph 1:16-21

I have not stopped giving thanks for you, remembering you in my prayers. I keep asking that the God of our Lord Jesus Christ, the glorious Father, may give you the Spirit of wisdom and revelation, so that you may know him better. I pray also that the eyes of your heart may be enlightened in order that you may know the hope to which he has called you, the riches of his glorious inheritance in the saints, and his incomparably great power for us who believe. That power is like the working of his mighty strength, which he exerted in Christ when he raised him from the dead and seated him at his right hand in the heavenly realms, far above all rule and authority, power and dominion, and every title that can be given, not only in the present age but also in the one to come.

ABOUNDING love, spiritual insight:

Phil 1:9-11

And this is my prayer: that your love may abound more and more in knowledge and depth of insight, so that you may be able to discern what is best and may be pure and blameless until the day of Christ, filled with the fruit of righteousness that comes through Jesus Christ- to the glory and praise of God.

UNITY? Romans 15 and Philippians 2 kind of unity:

Rom 15:5-6

May the God who gives endurance and encouragement give you a spirit of unity among yourselves as you follow Christ Jesus, so that with one heart and mouth you may glorify the God and Father of our Lord Jesus Christ.

Phil 2:1-2

If you have any encouragement from being united with Christ, if any comfort from his love, if any fellowship with the Spirit, if any tenderness and compassion, then make my joy complete by being like-minded, having the same love, being one in spirit and purpose.

(I am thinking here of unity among the orthodox bishops as they seek to respond to this plan and lead the way forward, not "unity at all costs" with ALL bishops.)

Eternal Encouragement, strengthened hearts:

II Th 2:16-17

May our Lord Jesus Christ himself and God our Father, who loved us and by his grace gave us eternal encouragement and good hope, encourage your hearts and strengthen you in every good deed and word.

1Thes3:13

May he strengthen your hearts so that you will be blameless and holy in the presence of our God and Father when our Lord Jesus comes with all his holy ones.

Joy, Peace, and OVERFLOWING Hope?.

Rom 15:13

May the God of hope fill you with all joy and peace as you trust in him, so that you may overflow with hope by the power of the Holy Spirit.

the POWER of the Holy Spirit:

Eph 3:16-21

I pray that out of his glorious riches he may strengthen you with power through his Spirit in your inner being, so that Christ may dwell in your hearts through faith. And I pray that you, being rooted and established in love, may have power, together with all the saints, to grasp how wide and long and high and deep is the love of Christ, and to know this love that surpasses knowledge- that you may be filled to the measure of all the fullness of God. Now to him who is able to do immeasurably more than all we ask or imagine, according to his power that is at work within us, to him be glory in the church and in Christ Jesus throughout all generations, for ever and ever! Amen.

Boldness and Fearless witness:

Eph 6:18-20

And pray in the Spirit on all occasions with all kinds of prayers and requests. With this in mind, be alert and always keep on praying for all the saints. Pray also for me, that whenever I open my mouth, words may be given me so that I will fearlessly make known the mystery of the gospel, ? Pray that I may declare it fearlessly, as I should.

Fruitfulness, GREAT endurance, patience:

Col 1:10-13

And we pray this in order that you may live a life worthy of the Lord and may please him in every way: bearing fruit in every good work, growing in the knowledge of God, being strengthened with all power according to his glorious might so that you may have great endurance and patience, and joyfully giving thanks to the Father, who has qualified you to share in the inheritance of the saints in the kingdom of light. For he has rescued us from the dominion of darkness and brought us into the kingdom of the Son he loves,

Santification, lives that will bring glory to Jesus:

1Thes 5:23-24

May God himself, the God of peace, sanctify you through and through. May your whole spirit, soul and body be kept blameless at the coming of our Lord Jesus Christ.
The one who calls you is faithful and he will do it.

II Th 1:11-12

With this in mind, we constantly pray for you, that our God may count you worthy of his calling, and that by his power he may fulfill every good purpose of yours and every act prompted by your faith. We pray this so that the name of our Lord Jesus may be glorified in you, and you in him, according to the grace of our God and the Lord Jesus Christ

.
Heb 13:20-21

May the God of peace, who through the blood of the eternal covenant brought back from the dead our Lord Jesus, that great Shepherd of the sheep, equip you with everything good for doing his will, and may he work in us what is pleasing to him, through Jesus Christ, to whom be glory for ever and ever. Amen.

PEACE:

II Th 3:16
Now may the Lord of peace himself give you peace at all times and in every way.

???-
BENEDICTION:

Jude 1:24-25
To him who is able to keep you from falling and to present you before his glorious presence without fault and with great joy- to the only God our Savior be glory, majesty, power and authority, through Jesus Christ our Lord, before all ages, now and forevermore! Amen.

(from our friend Karen B. at: http://lent.classicalanglican.net/index.php?p=145 )