Tuning for next week

[Kennie-malganis]

@Veránn-misha

@setback

@Kaivax

• Glass Cannon now decreases maximum health by 20% (was 15%)
• Flamecannon now increases maximum health by 2% per stack (was 3%).

@Kaivax

• Aimed Shot damage increased by 25% in PvP combat (was 15%).
• Rapid Fire damage increased by 25% in PvP combat (was 15%).
• Arcane Shot damage increased by 25% in PvP combat (was 16%).