Projectkorra is
fun plugin, but it doesn't have as much potential as it can, and there's add-ons for it for more bending, and spiritbending requires it.
These are some add-ons i think should be implemented
(Spiritbending) https://projectkorra.com/forum/resources/spirits.323/
(Also spiritbending) https://projectkorra.com/forum/resources/spirits-the-complete-set.385/
(Some fixes for the last one) https://projectkorra.com/forum/resources/spirits-the-complete-set.385/updates#resource-update-1458
darkbeam https://projectkorra.com/forum/resources/darkbeam.298/
Here's a variety of waterbending add on's
(Ice bending)
Ice Discs https://projectkorra.com/forum/resources/icediscs.397/
Ice catapult (watercombo) https://projectkorra.com/forum/resources/icecatapult-water-combo-for-1-8-7-will-be-updated-to-1-8-8.376/
Ice drill (watercombo) https://projectkorra.com/forum/resources/icedrill-water-combo-for-1-8-7-will-be-updated-to-1-8-8.375/
Shatter (watercombo) https://projectkorra.com/forum/resources/shatter-water-combo-for-1-8-7-will-be-updated-to-1-8-8.377/
(plantbending)
Plantburst https://projectkorra.com/forum/resources/plantburst.381/
plantblast https://projectkorra.com/forum/resources/plantblast.342/
sprout https://projectkorra.com/forum/resources/sprout.314/
rootrush https://projectkorra.com/forum/resources/rootrush.340/
vinemanipulation https://projectkorra.com/forum/resources/vinemanipulation.344/
aromatherapy https://projectkorra.com/forum/resources/aromatherapy.394/
(bloodbending)
bloodrip https://projectkorra.com/forum/resources/bloodrip.272/
cleanse https://projectkorra.com/forum/resources/cleanse.250/
(plain waterbending)
whip https://projectkorra.com/forum/resources/whip.312/
mend https://projectkorra.com/forum/resources/mend.256/
stream https://projectkorra.com/forum/resources/stream.374/
mist https://projectkorra.com/forum/resources/mist-combo-ability.370/
water energy (spirit + water move) https://projectkorra.com/forum/resources/waterenergy.291/
water restore (combo) https://projectkorra.com/forum/resources/waterrestore-combo.209/
FIREBENDING
fire serpent https://projectkorra.com/forum/resources/fireserpent-1-8-7.281/
boil (combo) https://projectkorra.com/forum/resources/boil-fire-combo-for-1-8-7-will-be-updated-to-1-8-8.378/
heatview https://projectkorra.com/forum/resources/heatview.388/
firedisc https://projectkorra.com/forum/resources/firedisc.130/
fire stream https://projectkorra.com/forum/resources/firestream.302/
firedrive https://projectkorra.com/forum/resources/firedrive.318/
firesword https://projectkorra.com/forum/resources/firesword.266/
fire napalm https://projectkorra.com/forum/resources/napalm.393/
flame rush (combo) https://projectkorra.com/forum/resources/combo-flamerush.359/
(combustion bending)
combustion rework https://projectkorra.com/forum/resources/combustion-rework.353/
immolate https://projectkorra.com/forum/resources/immolate.254/
(lightning bending) https://projectkorra.com/forum/resources/lightningorb.345/
EARTHBENDING
earthdrag https://projectkorra.com/forum/resources/earthdrag.237/
earthkick https://projectkorra.com/forum/resources/earthkick.297/
toss (combo) https://projectkorra.com/forum/resources/toss-combo-ability.386/
earthquake https://projectkorra.com/forum/resources/earthquake.373/
burrow (combo) https://projectkorra.com/forum/resources/burrow-earth-combo-for-1-8-7-will-updated-to-1-8-8.380/
earthwave https://projectkorra.com/forum/resources/earthwave.258/
earthring https://projectkorra.com/forum/resources/earthring.252/
earthmole https://projectkorra.com/forum/resources/earthmole-redone.365/
(lavabending)
magmaline https://projectkorra.com/forum/resources/magmaline.238/
lavasurge https://projectkorra.com/forum/resources/lavasurge.242/
lavaslap
lavaslaphttps://projectkorra.com/forum/resources/lavaslap.241/
magmarush https://projectkorra.com/forum/resources/magmarush.372/
lavaflux https://projectkorra.com/forum/resources/lavaflux.305/
lava arms https://projectkorra.com/forum/resources/lavaarms.261/
(seismic sense)
seismic sense https://projectkorra.com/forum/resources/seismicsense.300/
terra sense https://projectkorra.com/forum/resources/terrasense-updated-to-pk-v1-8-8.369/
(metalbending)
metal repair https://projectkorra.com/forum/resources/metalrepair.240/
shrapnel https://projectkorra.com/forum/resources/shrapnel.366/
metalcables https://projectkorra.com/forum/resources/metalcables.271/
(sandbending)
erosion https://projectkorra.com/forum/resources/erosion.382/
sand bullet https://projectkorra.com/forum/resources/sandbullet.284/
pocketsand https://projectkorra.com/forum/resources/pocketsand.392/
sandsurf https://projectkorra.com/forum/resources/sandsurf.253/
AIRBENDING
cloudburst https://projectkorra.com/forum/resources/cloudburst.228/
nimbus https://projectkorra.com/forum/resources/nimbus.274/
airwheel https://projectkorra.com/forum/resources/airwheel-updated-to-pk-v1-8-8.363/
summonself (combo) https://projectkorra.com/forum/resources/combo-summonself.362/
airspin https://projectkorra.com/forum/resources/airspin-pk-v1-8-7-and-pk-v1-8-8.367/
pressure https://projectkorra.com/forum/resources/pressure.301/
aircocoon https://projectkorra.com/forum/resources/aircocoon.350/
levitation https://projectkorra.com/forum/resources/levitation.327/
air bullet https://projectkorra.com/forum/resources/airbullet.324/
air slash https://projectkorra.com/forum/resources/airslash.287/
air thrust https://projectkorra.com/forum/resources/airthrust-flight.268/
whirlwind https://projectkorra.com/forum/resources/whirlwind.259/
(astral projection)
astral projection https://projectkorra.com/forum/resources/spiritual-projection.260/
cosmic bending / 7th chakra thingy
cosmic blast https://projectkorra.com/forum/resources/cosmicblast.279/
avatar
element trap https://projectkorra.com/forum/resources/elementtrap.280/
daycycle https://projectkorra.com/forum/resources/daycycle.248/
festive
jack o splosion https://projectkorra.com/forum/resources/jackosplosion.244/
(energy bending)
energybending https://projectkorra.com/forum/resources/energybeam.269/