Warrior/Knight Help Flexible Paladin EHP regen build

Here's the build I'm planning on getting...

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(sry can't post a link. Put this after "builder/")

WynnBuilder build:

> Cancer֎
> Hetusol
> Greaves of the Veneer
> Crusade Sabatons
> Prism
> Summa
> Remikas' Authority
> Contrast
> Guardian []

The most significant part of this build is the ability to swap between four different spears:
Guardian: team tank, EHP, EHP regen, good overall
Convergence: DPS (around 50% increase in DPS compared to Guardian while spell spamming)
Poison Ivy: poison, good for hit-and-run scenarios
Rhythm of the Seasons: Healing, Mana regen. escape artist

Are there any potential improvements that can be made?
Considerations I've had in the past:

Statue: great for EHP, but a pain to play with. Going up stairs is almost impossible. Plus, it offers little positive stats other than HP
Infidel: Great for spell damage, extremely easy to get, but terrible because I don't have the dexterity. Oh and I'm not giving up the 80/5s mana regen from Radiance-boosted Rhythm of the Seasons... although that requires a bunch of strength.
Boreal: great for hp regen, not great for skill points or spell damage.
Amulet of Revuna.... DON'T YOU DARE MENTION THAT! I fear no builds. But that... it scares me.
Dragon Tongue: it's cheap. It's got good HP and mana regen. But, it deals no damage.
Prowess: unfortunately I don't think I could wear contrast with prowess. I have an alternative build with Prowess, but this current one just wins by a slight margin (due to MANA). Plus, the extra poison damage is always appreciated.
Diamond solar ring/other diamond stuff: They don't give enough skill points. And, in this build, every last point counts. Even the ones on the tomes. Plus, I need more agility, not defense.
Leo: a great consideration. However, the (spell) damage is slightly lacking, and it provides no skill points. Sad.
Heroism: horrible hp regen.
Second wind: although the agility is appreciated, greaves of the veneer gives that perfect 20 defense to allow cancer to be put on. Plus, GoV just has other nice stats.
Dispersion: good poison, nice stats, agility... I dislike having to give this up but the extra skill points from summa just wins. Plus, Summa gives you extra mana regen. The consideration is still up though.
Photon: no.
Diamond fusion necklace: the skill points it provides are amazing. It also gives some nice elemental defenses. However, I just can't turn down +12 mana regen from contrast. It's still up for consideration though.