Wave weapon upgrade, secondary upgrades, spread weapon balance — The Well of Life Cannot Move Steam update #536806

Wave weapon upgrade! Level 10 -> applies Cold (6s slow) to enemies hit. Spread weapon now only has a 25% chance to create another layer of spread shots, but also has 25% chance to crit for 3x damage. Added secondary upgrades: WeaponUpgradeEffect Spiral Projectile duration +50% Staff 50% chance to crit for 3x damage Spread Projectile duration +50% Wave Projectile duration x3