Build melts group-trash instantly due to graveyard and lightning splash synergies. Since build uses Alkosh, enemies reliably, functionally, have 0 armor. Adding great group power. Runecarvers blaze has alot of synergy with necromancers dot-focus as well as the ardent flame skilline.
Skill rotation:
Before engagement
1. Hurricane
2. Skeletal Archer
3. Flames of oblivion
In fight
1. Stampede
2. Lightning Flood (then immediately use its synergy)
3. Blighted blastbones
4. Engulfing flames
5. Chains of Devastation
6. Blighted blastbones
7. Burning embers
8. Unnerving Graveyard