You could swap that Ragnorak +Dam in Arctic Breath for the Ragnorak Chance for Knockdown proc. Thats still +90% damage, or swap out the Dam/End maybe and keep capped damage.
It not only saves you a bit of inf, but it looks incredibly cool when you blow people off their feet. I have that proc in Fire Breath on my Blaster and love it 
Decided I wanted to make a dragon character who has as many breath attacks as possible, pretty sure Fire/ Brute tops it out at 3. Picked SR since I'm going to be hovering most of the time, didn't want a set that relied on being near mobs. Starting from there, these were my requirements:
All 3 breath attacks
Hover/Fly
Soft-capped
As much recharge as possible
This is what I came up with. Any suggestions for improvement? Don't worry about the slot ordering, I can fix that if necessary. Only thing off the top of my head I would like is more flight speed for hover, but I don't know how practical that would be.
Villain Plan by Mids' Villain Designer 1.707
http://www.cohplanner.com/
Click this DataLink to open the build!
Breath Weapon: Level 50 Magic Brute
Primary Power Set: Fiery Melee
Secondary Power Set: Super Reflexes
Power Pool: Fitness
Power Pool: Fighting
Power Pool: Flight
Power Pool: Speed
Ancillary Pool: Leviathan Mastery
Villain Profile:
Level 1: Fire Sword -- T'Death-Acc/Dmg(A), T'Death-Dmg/EndRdx(13), T'Death-Dmg/Rchg(13), T'Death-Acc/Dmg/EndRdx(15), T'Death-Dmg/EndRdx/Rchg(15), T'Death-Dam%(17)
Level 1: Focused Fighting -- DefBuff-I(A), DefBuff-I(3), DefBuff-I(3), EndRdx-I(5), LkGmblr-Rchg+(17)
Level 2: Focused Senses -- DefBuff-I(A), DefBuff-I(5), DefBuff-I(7), EndRdx-I(7), LkGmblr-Rchg+(43)
Level 4: Agile -- DefBuff-I(A), DefBuff-I(9), LkGmblr-Rchg+(9)
Level 6: Swift -- Flight-I(A)
Level 8: Build Up -- RechRdx-I(A), RechRdx-I(11), RechRdx-I(11)
Level 10: Practiced Brawler -- RechRdx-I(A)
Level 12: Boxing -- Empty(A)
Level 14: Health -- Heal-I(A)
Level 16: Tough -- S'fstPrt-ResDam/Def+(A), S'fstPrt-ResDam/EndRdx(50)
Level 18: Breath of Fire -- Posi-Acc/Dmg(A), Posi-Dmg/EndRdx(19), Posi-Dmg/Rchg(19), Posi-Dmg/Rng(23), Posi-Acc/Dmg/EndRdx(23), Range-I(25)
Level 20: Stamina -- P'Shift-EndMod(A), P'Shift-EndMod/Rchg(21), P'Shift-EndMod/Acc/Rchg(21), P'Shift-Acc/Rchg(40), P'Shift-EndMod/Acc(40), P'Shift-End%(40)
Level 22: Weave -- DefBuff-I(A), DefBuff-I(25), DefBuff-I(27), EndRdx-I(27)
Level 24: Dodge -- DefBuff-I(A), DefBuff-I(29), LkGmblr-Rchg+(29)
Level 26: Evasion -- DefBuff-I(A), DefBuff-I(31), DefBuff-I(31), EndRdx-I(31)
Level 28: Hover -- LkGmblr-Rchg+(A), LkGmblr-Def/EndRdx(37), DefBuff-I(37), Flight-I(37), Flight-I(39), Srng-EndRdx/Fly(39)
Level 30: Lucky -- RedFtn-Def/EndRdx(A), RedFtn-Def/Rchg(34), RedFtn-EndRdx/Rchg(36), RedFtn-Def(43), RedFtn-EndRdx(46), RedFtn-Def/EndRdx/Rchg(50)
Level 32: Greater Fire Sword -- Hectmb-Dmg/Rchg(A), Hectmb-Acc/Dmg/Rchg(33), Hectmb-Acc/Rchg(33), Hectmb-Dmg/EndRdx(33), Hectmb-Dam%(34), Mako-Dam%(34)
Level 35: Hasten -- RechRdx-I(A), RechRdx-I(36), RechRdx-I(36)
Level 38: Fly -- Flight-I(A), Srng-EndRdx/Fly(39)
Level 41: Spirit Shark -- Apoc-Dmg(A), Apoc-Dmg/Rchg(42), Apoc-Acc/Rchg(42), Apoc-Dmg/EndRdx(42), Apoc-Dam%(43)
Level 44: Arctic Breath -- Ragnrk-Dmg(A), Ragnrk-Dmg/Rchg(45), Ragnrk-Acc/Dmg/Rchg(45), Ragnrk-Acc/Rchg(45), Ragnrk-Dmg/EndRdx(46), Achilles-ResDeb%(46)
Level 47: Bile Spray -- Posi-Acc/Dmg(A), Posi-Dmg/EndRdx(48), Posi-Dmg/Rchg(48), Posi-Acc/Dmg/EndRdx(48), Posi-Dam%(50)
Level 49: Quickness -- Flight-I(A)
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Level 1: Brawl -- Empty(A)
Level 1: Sprint -- Empty(A)
Level 2: Rest -- Empty(A)
Level 1: Fury
Level 6: Ninja Run
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Set Bonus Totals: