Let's compare:
Elite Lord Knight Spear:
Increase damage done to Demi Humans by 7% Str + 5 Dex + 5
Rental Lord Knight Spear:
One-handed spear: Attack = 120, +10 str/dex, +10% damage to demi-humans.
Donation Lord Knight Spear:
Increase damage done to Demi Humans by 15%, Str + 15, Dex + 20, +10 Vit.
As you can see, it's a gradual increase, not from another "galactic."
The .1% chance for coma was added in because it was a suggested by the community.
The decrease in cast time and the buff to spiral pierce was intended to diversify the class more (give them other options than Bowling Bash, etc.)
------
Elite Champion Knuckle:
Increase Damage done to Demi Humans by 8%, Dex + 5, Str + 7
Rental Champion Knuckle:
+10 dex, +7 str, +10 int, +10% damage to demi-humans.
Donation Champion Knuckle:
Dex + 15, Str + 15, Int + 15, Increase Damage on Demi Humans by 13%
There was very little increase here. Again, as you can see, it's gradual.
------
Elite Assassin Cross Dagger:
Increase damage on DemiHuman enemies by 5%.
Rental Assassin Cross Dagger:
+10% damage to demi-humans.
Donation Assassin Cross SWORD:
Str + 10, Agi + 10, Int + 30, SP + 20%, +10% damage to demi-human, + 5 ASPD
We added very little strength and agi. The demi-human damage is kept exactly the same. We added a significant amount of Int and SP in hopes some people would start to use Soul Destroyer more to make the class more diverse. It's difficult to compare this really since there is not an elite sword for Assassin Crosses... but the increase of the effects are not THAT dramatic.
Donation Assassin Cross SWORD (critical):
Agi + 20, Luk + 30, Str + 20, Critical Rate + 30, Perfect Dodge + 10, Inflict 15% more damage with critical attack, + 5 ASPD
There is a big change here. Everything for this one was designed to encourage more diversity for Assassin Crosses rather than having all of them be Dex-based. Keep in mind, this was made with the intention that only one could be equipped.
------
Elite Clown Bow:
Agi + 15 Dex + 15
Rental Clown Bow:
+20 agi/dex, +20% more damage with double strafe, -20% damage from demi-humans
Donation Clown Bow:
Agi + 25, Dex + 25, +20% damage to demihumans, +20% damage with double strafe, 30% Chance of auto-casting Lv. 5 Tarot Card of Fate when being attacked (or attacking), .01 chance of casting Coma.
As far as stat boosting goes, there was little increase. All of the boosts to demi-human/double strafe was with the intention of once again, giving the class other options than AV/tarot spam for the class. Since they can't use AV with this (which would still make whips/musical instruments better), we added a chance of casting coma/tarot.
------
All of the effects build upon each other consecutively from Elite -> Rental -> Donation. Our intention for these weapons were to balance underpowered classes, or if they were already strong, to diversify the class and provide other methods of playing.