What are these "healing debuffs" are where do I get them?

I'm not sure if any other class has healing debuffs besides the warrior skill Doom Blade. As for the Shiroda Priest try to stay close to her and disrupt her high damage skill and dodge the one the drains your stamina. You can also dodge the homing projectile sometimes just before she casts it you jump behind her, this will cause the projectile not to home. I ignore the guards she summons because they don't do much damage and giving her distance gives her the chance to heal up and cast her spells unless you have AOE skills to clear.

I need help on the venomwoods boss, can't really beat with a priest.

I'd tell you, but i'm not a priest. I'm an assasain. All the advice i can offer is that to keep hitting him, disrupt his evil sparkly cloud when you can, and when you can't, run away to the other side of the screen.
Does anyone have tips for Kazuro as an assasain? (I have a 'Brutal Charge' or something, 136 damage.) Driving me bonkers trying to gethim, especially with that clone-of-you thing he makes.

HELP Assasin with 2k damage on kazuro but I can't win. Sighs....

warrior is completely OP so far (I'm level 18) and am literally unkillable. I stack strength, vitality, and defense (with some agility mixed in, though I do not sacrifice other stats for it). I'm sitting at 96 damage, 40 defense, 200 str, 31 int, 92 agility, 164 vitality. My talent tree is as follows:
tier 1: 2/2 iron discipline, 3/3 brutal advantage, 1/2 concentrated brew
tier 2: 4/5 heavy armor (maxing next level)
tier 3: 3/3 avenger
tier 4: (nothing)
tier 5: 3/3 aggression
tier 6: deadly charge

heavy armor will be 50% passive damage reduction (on top of defense/blocking next level), my critical hits restore 30 focus and 100% of vitality as health, and every 10 seconds I get 1 attack for +100% crit +stun.
30% chance when I take any hit that my next attack does 100% increased damage. I use an 2h Emerald Spear purchased from the vendor in the 2nd town who you use to upgrade items, and upgraded it to transcendent level so it runs +83 damage, +18 defense, and gives me 3% cooldown reduction.
Basically I watch my buffs, and I open a fight with Slam for a slight knockback + stun @ 100% crit, followed by a strike or two. Once I see avenger 100% dmg next attack proc, I hit my ult (charge) combined with the 100% crit damage, and it lands for about 1500-1700 damage. I'm going to do another playthrough with a priest and an assassin as well. I'm not sure if I want to purchase content for the hunter at this point though.

Could someone enlighten me with the upgrade system? I've wanted to have the full-scale paragon and the thing with (+2) and (+4) on the bottom, it just says its transcendent but not paragon. And thank you for this awesome game. Mastered the 3 basic classes, and now trying for the hard difficulty.

Transcendent quality is the best upgrade tier in the game and I also assume you're talking about the set bonuses for wearing 2 or 4 pieces of an armor set.

yeah you can find emeral crystal and so from bosses 2nd time + give higher drop rate of good items
keep that luck amulet u get from side quest + noble armor and luck potion u will great more drops then u can carry pr run. btw hunter can giv 6 % more rare drops

also did any other find lunar shako in icihisan castle adds solidarity  and 18 int 30 agi 13 vit

also priest are realy strong when u are running around whit almost 11 k hp and do 1200 dmg every 0.5 sec + instant hits

trance gives 1 focus every sec
bloodbath gives 5 % for open whounds
tank gives 15 % str and vit but slows you down 20 %
solidarity gain 5 % vit as str and agi and int
destroyer adds 3 % damage dealt
toxicity adds 10 % chance of poisen and slows target
presicion adds 5 % crit chance
reflex reduce cooldown on skills by 5 %
madness gives you 50 % of int as str but decrease focus by 50
iron heart decreases chance of crit dmg on u by 15 %
focus strike gives 10 % chance of 5 focus pr hit

how do you disrupt lady akari's fireballs?
^^i'm an amateur, help me out.