From WoWWiki
Holy Nova is a Holy based PBAoE spell which heals party members and damages enemies, causing no threat. It can only be acquired from the Priest class Holy talent tree.
Rank Table
| Rank | Level | Type | Mana Cost | Damage to Enemies | Healing To Party | Cost
|
| 1 | 20+ | Holy | 185 | 28-32 | 52-60 | Talent
|
| 2 | 28 | Holy | 290 | 50-58 | 86-98 | 3 60
|
| 3 | 36 | Holy | 400 | 76-88 | 121-139 | 6 30
|
| 4 | 44 | Holy | 520 | 106-123 | 161-188 | 10 80
|
| 5 | 52 | Holy | 635 | 140-163 | 235-272 | 17 10
|
| 6 | 60 | Holy | 750 | 181-210 | 302-350 | 20 70
|
| 7 | 68 | Holy | 875 | 242-280 | 384-446 | 5 85 
|
Notes
- Holy Nova was originally a 31-point holy talent, and has been subject to many tweaks over time, including changes in casting time, cooldown, mana cost, and actual effect.
- Holy Nova generates no threat. However, it will put you on the aggro table, so if no other player is attacking a mob, the mob will attack you.
Tips and Tactics
- Holy Nova Rank 1 can be used to break stealth, to cancel flag-tagging and to disrupt spellcasting of enemy groups. Furthermore, its healing will help you survive.
- It can be used in aggro-sensitive fights to avoid getting aggro.
