Level my magic item

[AntiStateQuixote]

Help me level this magic item. It's a neck piece with a daily power. The daily power is part of the effect from the Warlock 1st level daily power "Armor of Agathys."


Flaming Burst Cloak (Level 4+ Rare)

Made from a red dragon's wing, this claok protects you from harm and bathes your foes in flame on command.

Lvl 4 +1
Lvl 9 +2
Lvl 14 +3
etc.

Neck Slot
Enhancement Bonus: Fortitude, Reflex, and Will

Power Daily (Standard Action) Personal
Effect: Until the end of the encounter any enemy that starts its turn adjacent to you takes 1d6 + Constitution modifier fire damage.

 

[Dr_Ruminahui]

I would just make it d6 per tier - so 1d6 for the heroic items, 2d6 for the paragon and 3d6 for the epic.

That seems in line with how I recall other damaging neck items working - check for example the flame shroud cloak.