New skills, some balance, and stacking debuff effects

Engine

• Added support for buff/debuff stacking
• Added ability to stack debuffs on enemies from generic sources
• Added a display next to the main enemy health bar to display debuffs
• Added the ability to display buff/debuff stacks to all UI elements that show buffs/debuffs
• Added support for special passive bonuses per point spent in each skill tree

New Skills (Adventurer - Warrior)

• Earth Crusher - Increase the area and length of Shockwave by 2% per point spent
• Overwhelming Strikes - Apply a 3 second resistance shred debuff to a hit enemy, reducing all resistances by 2% per point spent. Lasts 3 seconds and stacks up to 5 times

New Skills (Adventurer - Hero)

• Resilience - Increases the drop rate of health and mana crystals by 1% per point (this is a flat increase)

Passives (Warrior, Hero, Pyromancer)

• Warrior - 1% increased Health and 1% increased attack damage per point spent in the Warrior tree
• Hero - 1% increased Health and +1 mana per point spent in the Hero tree
• Pyromancer - 1% increased Health and 1% increased spell damage per point spent in the Pyromancer tree

Balance

• Most item mods had their minimum level requirement reduced
• Health and resistance mods had their values increased across the board
• You now earn (and start with) 2 skill points per level