Concept DK support buff..

Sparxlost

Buff for DK healers and support tanks...
For a healer that pretty much only has good direct burst heals, single target isnt doing well enough... The class heals arent as passive as other class's heals and the ones that are are trash to use leaving dk healers with less options outside of resto staff/other healing sets or skills..

Cauterize: Cauterize retains its 5 second interval between ticks but instead pulses with warmth to heal everyone within range for its value... (5 seconds between this mediocre heal is just absurd so it would be better to make it more like templars healing ritual skill

Protective scale and morphs reduces incoming projectile damage by 20% but applies to allies within a certain range
Dragon fire scale: reduces the damage of the fireball counters but also reduces the cooldowns for more consistent value (i feel like DK healers need to do a lot of cast healing so some passive damage would help as they dont really have any uique or rare class debuffs to consistently apply from back lane)

Obsidian shard no longer deals damage to enemies but becomes a floating rock thing like stone giants that floats in tandem with your Cauterize. The rock gains power over time and can be shattered to heal two nearby allies with varying results based on time active...
Stone Giant: no longer has floating rocks but acts more like molten whip... press to charge an opponent with a stone encased fist, shattering it. Recast after successful stun to stomp the ground dealing area damage (not a support skill but i thought it looked weird as a stam skill so here you go)

Fragmented shield: changes major mending to minor and increases duration to 10 seconds...

Dk support focuses mainly on ult gen to buff weapon damage with relative ease but suffers from a lack of healing potential overall so i thought this would make them as good if not better than other classes in the support area without breaking the game...